Fix some comments.

Like commit 123661427b, these were discovered while reviewing
Aleksander Alekseev's proposed changes to pgindent.

src/backend/libpq/pqformat.c

@@ -307,9 +307,8 @@ pq_endmessage(StringInfo buf)
  *
  * The data buffer is *not* freed, allowing to reuse the buffer with
  * pq_beginmessage_reuse.
- --------------------------------
+ * --------------------------------
  */
-
 void
 pq_endmessage_reuse(StringInfo buf)
 {

src/backend/rewrite/rewriteHandler.c

@@ -2620,7 +2620,7 @@ view_col_is_auto_updatable(RangeTblRef *rtr, TargetEntry *tle)
  * view_query_is_auto_updatable - test whether the specified view definition
  * represents an auto-updatable view. Returns NULL (if the view can be updated)
  * or a message string giving the reason that it cannot be.
-
+ *
  * The returned string has not been translated; if it is shown as an error
  * message, the caller should apply _() to translate it.
  *

src/backend/storage/file/fileset.c

@@ -114,7 +114,8 @@ FileSetCreate(FileSet *fileset, const char *name)
 }
 
 /*
- * Open a file that was created with FileSetCreate() */
+ * Open a file that was created with FileSetCreate()
+ */
 File
 FileSetOpen(FileSet *fileset, const char *name, int mode)
 {

src/backend/utils/adt/numutils.c

@@ -113,7 +113,7 @@ static const int8 hexlookup[128] = {
  * pg_strtoint16() will throw ereport() upon bad input format or overflow;
  * while pg_strtoint16_safe() instead returns such complaints in *escontext,
  * if it's an ErrorSaveContext.
-*
+ *
  * NB: Accumulate input as an unsigned number, to deal with two's complement
  * representation of the most negative number, which can't be represented as a
  * signed positive number.

src/backend/utils/cache/relcache.c

@@ -5643,7 +5643,7 @@ RelationGetIdentityKeyBitmap(Relation relation)
  * This should be called only for an index that is known to have an associated
  * exclusion constraint or primary key/unique constraint using WITHOUT
  * OVERLAPS.
-
+ *
  * It returns arrays (palloc'd in caller's context) of the exclusion operator
  * OIDs, their underlying functions' OIDs, and their strategy numbers in the
  * index's opclasses.  We cache all this information since it requires a fair

src/backend/utils/mb/conv.c

@@ -484,7 +484,7 @@ pg_mb_radix_conv(const pg_mb_radix_tree *rt,
  * utf: input string in UTF8 encoding (need not be null-terminated)
  * len: length of input string (in bytes)
  * iso: pointer to the output area (must be large enough!)
-		  (output string will be null-terminated)
+ *		  (output string will be null-terminated)
  * map: conversion map for single characters
  * cmap: conversion map for combined characters
  *		  (optional, pass NULL if none)
@@ -694,7 +694,7 @@ UtfToLocal(const unsigned char *utf, int len,
  * iso: input string in local encoding (need not be null-terminated)
  * len: length of input string (in bytes)
  * utf: pointer to the output area (must be large enough!)
-		  (output string will be null-terminated)
+ *		  (output string will be null-terminated)
  * map: conversion map for single characters
  * cmap: conversion map for combined characters
  *		  (optional, pass NULL if none)

src/backend/utils/mb/mbutils.c

@@ -497,7 +497,8 @@ pg_do_encoding_conversion_buf(Oid proc,
  * Convert string to encoding encoding_name. The source
  * encoding is the DB encoding.
  *
- * BYTEA convert_to(TEXT string, NAME encoding_name) */
+ * BYTEA convert_to(TEXT string, NAME encoding_name)
+ */
 Datum
 pg_convert_to(PG_FUNCTION_ARGS)
 {
@@ -522,7 +523,8 @@ pg_convert_to(PG_FUNCTION_ARGS)
  * Convert string from encoding encoding_name. The destination
  * encoding is the DB encoding.
  *
- * TEXT convert_from(BYTEA string, NAME encoding_name) */
+ * TEXT convert_from(BYTEA string, NAME encoding_name)
+ */
 Datum
 pg_convert_from(PG_FUNCTION_ARGS)
 {

src/backend/utils/misc/guc.c

@@ -5449,7 +5449,7 @@ ShowGUCOption(const struct config_generic *record, bool use_units)
  *		variable sourceline, integer
  *		variable source, integer
  *		variable scontext, integer
-*		variable srole, OID
+ *		variable srole, OID
  */
 static void
 write_one_nondefault_variable(FILE *fp, struct config_generic *gconf)

src/backend/utils/mmgr/alignedalloc.c

@@ -23,8 +23,8 @@
 
 /*
  * AlignedAllocFree
-*		Frees allocated memory; memory is removed from its owning context.
+ *		Frees allocated memory; memory is removed from its owning context.
-*/
+ */
 void
 AlignedAllocFree(void *pointer)
 {

src/backend/utils/mmgr/portalmem.c

@@ -853,7 +853,8 @@ AtAbort_Portals(void)
 /*
  * Post-abort cleanup for portals.
  *
- * Delete all portals not held over from prior transactions.  */
+ * Delete all portals not held over from prior transactions.
+ */
 void
 AtCleanup_Portals(void)
 {

src/backend/utils/sort/tuplesortvariants.c

@@ -1132,7 +1132,6 @@ tuplesort_getgintuple(Tuplesortstate *state, Size *len, bool forward)
  * efficient, but only safe for callers that are prepared to have any
  * subsequent manipulation of the tuplesort's state invalidate slot contents.
  * For byval Datums, the value of the 'copy' parameter has no effect.
-
  */
 bool
 tuplesort_getdatum(Tuplesortstate *state, bool forward, bool copy,

src/include/executor/executor.h

@@ -404,7 +404,7 @@ ExecEvalExpr(ExprState *state,
  * Like ExecEvalExpr(), but for cases where no return value is expected,
  * because the side-effects of expression evaluation are what's desired. This
  * is e.g. used for projection and aggregate transition computation.
-
+ *
  * Evaluate expression identified by "state" in the execution context
  * given by "econtext".
  *