Split all OBJS style lines in makefiles into one-line-per-entry style.

When maintaining or merging patches, one of the most common sources
for conflicts are the list of objects in makefiles. Especially when
the split across lines has been changed on both sides, which is
somewhat common due to attempting to stay below 80 columns, those
conflicts are unnecessarily laborious to resolve.

By splitting, and alphabetically sorting, OBJS style lines into one
object per line, conflicts should be less frequent, and easier to
resolve when they still occur.

Author: Andres Freund
Discussion: https://postgr.es/m/20191029200901.vww4idgcxv74cwes@alap3.anarazel.de

src/backend/access/brin/Makefile

@@ -12,7 +12,14 @@ subdir = src/backend/access/brin
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = brin.o brin_pageops.o brin_revmap.o brin_tuple.o brin_xlog.o \
-       brin_minmax.o brin_inclusion.o brin_validate.o
+OBJS = \
+	brin.o \
+	brin_inclusion.o \
+	brin_minmax.o \
+	brin_pageops.o \
+	brin_revmap.o \
+	brin_tuple.o \
+	brin_validate.o \
+	brin_xlog.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/common/Makefile

@@ -12,8 +12,19 @@ subdir = src/backend/access/common
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = bufmask.o detoast.o heaptuple.o indextuple.o printsimple.o \
-	printtup.o relation.o reloptions.o scankey.o session.o toast_internals.o \
-	tupconvert.o tupdesc.o
+OBJS = \
+	bufmask.o \
+	detoast.o \
+	heaptuple.o \
+	indextuple.o \
+	printsimple.o \
+	printtup.o \
+	relation.o \
+	reloptions.o \
+	scankey.o \
+	session.o \
+	toast_internals.o \
+	tupconvert.o \
+	tupdesc.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/gin/Makefile

@@ -12,8 +12,21 @@ subdir = src/backend/access/gin
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = ginutil.o gininsert.o ginxlog.o ginentrypage.o gindatapage.o \
-	ginbtree.o ginscan.o ginget.o ginvacuum.o ginarrayproc.o \
-	ginbulk.o ginfast.o ginpostinglist.o ginlogic.o ginvalidate.o
+OBJS = \
+	ginarrayproc.o \
+	ginbtree.o \
+	ginbulk.o \
+	gindatapage.o \
+	ginentrypage.o \
+	ginfast.o \
+	ginget.o \
+	gininsert.o \
+	ginlogic.o \
+	ginpostinglist.o \
+	ginscan.o \
+	ginutil.o \
+	ginvacuum.o \
+	ginvalidate.o \
+	ginxlog.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/gist/Makefile

@@ -12,7 +12,17 @@ subdir = src/backend/access/gist
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = gist.o gistutil.o gistxlog.o gistvacuum.o gistget.o gistscan.o \
-       gistproc.o gistsplit.o gistbuild.o gistbuildbuffers.o gistvalidate.o
+OBJS = \
+	gist.o \
+	gistbuild.o \
+	gistbuildbuffers.o \
+	gistget.o \
+	gistproc.o \
+	gistscan.o \
+	gistsplit.o \
+	gistutil.o \
+	gistvacuum.o \
+	gistvalidate.o \
+	gistxlog.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/hash/Makefile

@@ -12,7 +12,16 @@ subdir = src/backend/access/hash
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = hash.o hashfunc.o hashinsert.o hashovfl.o hashpage.o hashsearch.o \
-       hashsort.o hashutil.o hashvalidate.o hash_xlog.o
+OBJS = \
+	hash.o \
+	hash_xlog.o \
+	hashfunc.o \
+	hashinsert.o \
+	hashovfl.o \
+	hashpage.o \
+	hashsearch.o \
+	hashsort.o \
+	hashutil.o \
+	hashvalidate.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/heap/Makefile

@@ -12,7 +12,16 @@ subdir = src/backend/access/heap
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = heapam.o heapam_handler.o heapam_visibility.o hio.o pruneheap.o rewriteheap.o \
-	syncscan.o heaptoast.o vacuumlazy.o visibilitymap.o
+OBJS = \
+	heapam.o \
+	heapam_handler.o \
+	heapam_visibility.o \
+	heaptoast.o \
+	hio.o \
+	pruneheap.o \
+	rewriteheap.o \
+	syncscan.o \
+	vacuumlazy.o \
+	visibilitymap.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/index/Makefile

@@ -12,6 +12,10 @@ subdir = src/backend/access/index
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = amapi.o amvalidate.o genam.o indexam.o
+OBJS = \
+	amapi.o \
+	amvalidate.o \
+	genam.o \
+	indexam.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/nbtree/Makefile

@@ -12,7 +12,16 @@ subdir = src/backend/access/nbtree
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = nbtcompare.o nbtinsert.o nbtpage.o nbtree.o nbtsearch.o \
-       nbtsplitloc.o nbtutils.o nbtsort.o nbtvalidate.o nbtxlog.o
+OBJS = \
+	nbtcompare.o \
+	nbtinsert.o \
+	nbtpage.o \
+	nbtree.o \
+	nbtsearch.o \
+	nbtsort.o \
+	nbtsplitloc.o \
+	nbtutils.o \
+	nbtvalidate.o \
+	nbtxlog.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/rmgrdesc/Makefile

@@ -8,9 +8,27 @@ subdir = src/backend/access/rmgrdesc
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = brindesc.o clogdesc.o committsdesc.o dbasedesc.o genericdesc.o \
-	   gindesc.o gistdesc.o hashdesc.o heapdesc.o logicalmsgdesc.o \
-	   mxactdesc.o nbtdesc.o relmapdesc.o replorigindesc.o seqdesc.o \
-	   smgrdesc.o spgdesc.o standbydesc.o tblspcdesc.o xactdesc.o xlogdesc.o
+OBJS = \
+	brindesc.o \
+	clogdesc.o \
+	committsdesc.o \
+	dbasedesc.o \
+	genericdesc.o \
+	gindesc.o \
+	gistdesc.o \
+	hashdesc.o \
+	heapdesc.o \
+	logicalmsgdesc.o \
+	mxactdesc.o \
+	nbtdesc.o \
+	relmapdesc.o \
+	replorigindesc.o \
+	seqdesc.o \
+	smgrdesc.o \
+	spgdesc.o \
+	standbydesc.o \
+	tblspcdesc.o \
+	xactdesc.o \
+	xlogdesc.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/spgist/Makefile

@@ -12,9 +12,17 @@ subdir = src/backend/access/spgist
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = spgutils.o spginsert.o spgscan.o spgvacuum.o spgvalidate.o \
-	spgdoinsert.o spgxlog.o \
-	spgtextproc.o spgquadtreeproc.o spgkdtreeproc.o \
-	spgproc.o
+OBJS = \
+	spgdoinsert.o \
+	spginsert.o \
+	spgkdtreeproc.o \
+	spgproc.o \
+	spgquadtreeproc.o \
+	spgscan.o \
+	spgtextproc.o \
+	spgutils.o \
+	spgvacuum.o \
+	spgvalidate.o \
+	spgxlog.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/table/Makefile

@@ -12,6 +12,10 @@ subdir = src/backend/access/table
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = table.o tableam.o tableamapi.o toast_helper.o
+OBJS = \
+	table.o \
+	tableam.o \
+	tableamapi.o \
+	toast_helper.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/tablesample/Makefile

@@ -12,6 +12,9 @@ subdir = src/backend/access/tablesample
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = bernoulli.o system.o tablesample.o
+OBJS = \
+	bernoulli.o \
+	system.o \
+	tablesample.o
 
 include $(top_srcdir)/src/backend/common.mk

src/backend/access/transam/Makefile

@@ -12,10 +12,27 @@ subdir = src/backend/access/transam
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-OBJS = clog.o commit_ts.o generic_xlog.o multixact.o parallel.o rmgr.o slru.o \
-	subtrans.o timeline.o transam.o twophase.o twophase_rmgr.o varsup.o \
-	xact.o xlog.o xlogarchive.o xlogfuncs.o \
-	xloginsert.o xlogreader.o xlogutils.o
+OBJS = \
+	clog.o \
+	commit_ts.o \
+	generic_xlog.o \
+	multixact.o \
+	parallel.o \
+	rmgr.o \
+	slru.o \
+	subtrans.o \
+	timeline.o \
+	transam.o \
+	twophase.o \
+	twophase_rmgr.o \
+	varsup.o \
+	xact.o \
+	xlog.o \
+	xlogarchive.o \
+	xlogfuncs.o \
+	xloginsert.o \
+	xlogreader.o \
+	xlogutils.o
 
 include $(top_srcdir)/src/backend/common.mk