maint: convert all TABs to equivalent spaces in indentation

Using this file,

cat > leading-blank.exempt <<\EOF
(\.gitmodules|help2man|pre-commit)$
(?:^|\/)ChangeLog[^/]*$
(?:^|\/)(?:GNU)?[Mm]akefile[^/]*$
\.(?:am|mk)$
EOF

run the following command to convert all non-conforming leading white
space to be all spaces:

git ls-files \
  | pcregrep -vf leading-blank.exempt \
  | xargs pcregrep -l '^ *\t' \
  | xargs perl -MText::Tabs -ni -le \
    '$m=/^( *\t[ \t]*)(.*)/; print $m ? expand($1) . $2 : $_'

Since that changed old NEWS, I also ran "make update-NEWS-hash"
to update the old_NEWS_hash value in cfg.mk.

1 files changed, 6 insertions, 6 deletions

diff --git a/NEWS b/NEWS
index 9ab0748..5c1ae5f 100644
--- a/NEWS
+++ b/NEWS
@@ -343,12 +343,12 @@ User-visible changes in version 2.4:
       printed according to the printf specification.
       E.g. '%5df' prints the number of the first line in the
       group in the old file using the "%5d" format.
-	e: line number just before the group in old file; equals f - 1
-	f: first line number in group in the old file
-	l: last line number in group in the old file
-	m: line number just after the group in old file; equals l + 1
-	n: number of lines in group in the old file; equals l - f + 1
-	E, F, L, M, N: likewise, for lines in the new file
+        e: line number just before the group in old file; equals f - 1
+        f: first line number in group in the old file
+        l: last line number in group in the old file
+        m: line number just after the group in old file; equals l + 1
+        n: number of lines in group in the old file; equals l - f + 1
+        E, F, L, M, N: likewise, for lines in the new file
   %(A=B?T:E)
       If A equals B then T else E.  A and B are each either a decimal
       constant or a single letter interpreted as above.  T and E are