Fix and sort variables in Makefiles

Fix variables in Makefiles:

1. There is a tab, not a space, between "variable" and =, +=, :=.
2. The last entry doesn't have a trailing \.

and sort them.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>

misc/Makefile

@@ -23,62 +23,62 @@ subdir	:= misc
 
 include ../Makeconfig
 
-headers	:= \
-  sys/uio.h \
-  bits/uio-ext.h \
-  bits/uio_lim.h \
-  sys/ioctl.h \
-  bits/ioctls.h \
-  bits/ioctl-types.h \
-  sys/ptrace.h \
-  sys/file.h \
-  sys/dir.h \
-  sys/cdefs.h \
-  ar.h \
+headers := \
   a.out.h \
-  libgen.h \
-  stab.h \
-  bits/stab.def \
-  sgtty.h \
-  ttyent.h \
-  paths.h \
-  sys/reboot.h \
-  sys/mman.h \
-  sys/param.h \
-  bits/param.h \
-  fstab.h \
-  mntent.h \
-  search.h \
-  err.h \
-  error.h \
-  sys/queue.h \
-  sysexits.h \
-  syscall.h \
-  sys/syscall.h \
-  sys/swap.h \
-  sys/select.h \
-  sys/sysinfo.h \
-  regexp.h \
-  bits/select.h \
-  bits/mman.h \
-  sys/xattr.h \
-  syslog.h \
-  sys/syslog.h \
-  bits/syslog-decl.h \
-  bits/syslog.h \
-  bits/syslog-ldbl.h \
-  bits/syslog-path.h \
-  bits/error.h \
-  bits/select-decl.h \
-  bits/select2.h \
-  bits/hwcap.h \
-  sys/auxv.h \
-  sys/sysmacros.h \
-  bits/sysmacros.h \
-  bits/types/struct_iovec.h \
+  ar.h \
   bits/err-ldbl.h \
   bits/error-ldbl.h \
+  bits/error.h \
+  bits/hwcap.h \
+  bits/ioctl-types.h \
+  bits/ioctls.h \
+  bits/mman.h \
+  bits/param.h \
+  bits/select-decl.h \
+  bits/select.h \
+  bits/select2.h \
+  bits/stab.def \
+  bits/syslog-decl.h \
+  bits/syslog-ldbl.h \
+  bits/syslog-path.h \
+  bits/syslog.h \
+  bits/sysmacros.h \
+  bits/types/struct_iovec.h \
+  bits/uio-ext.h \
+  bits/uio_lim.h \
+  err.h \
+  error.h \
+  fstab.h \
+  libgen.h \
+  mntent.h \
+  paths.h \
+  regexp.h \
+  search.h \
+  sgtty.h \
+  stab.h \
+  sys/auxv.h \
+  sys/cdefs.h \
+  sys/dir.h \
+  sys/file.h \
+  sys/ioctl.h \
+  sys/mman.h \
+  sys/param.h \
+  sys/ptrace.h \
+  sys/queue.h \
+  sys/reboot.h \
+  sys/select.h \
   sys/single_threaded.h \
+  sys/swap.h \
+  sys/syscall.h \
+  sys/sysinfo.h \
+  sys/syslog.h \
+  sys/sysmacros.h \
+  sys/uio.h \
+  sys/xattr.h \
+  syscall.h \
+  sysexits.h \
+  syslog.h \
+  ttyent.h \
   # headers
 
 routines := \