New option -o for setversion script

UTILITIES/set-version.pl

@@ -5,33 +5,41 @@ if ($version eq "--all" or $version eq "-a") {
   $version = $ARGV[1]
 }
 
+if ($version eq "--only" or $version eq "-o") {
+  $only = 1;
+  $version = $ARGV[1]
+}
+
 die "No version given" unless $version=~/\S/;
 $date = `date "+%B %Y"`; chomp $date;
 $year = `date "+%Y"` ; chomp $year;
 
 print STDERR "Changing version to \"$version\" and date to \"$date\" in all relevant files\n" ;
 
-print STDERR join("\n",glob("lisp/*.el")),"\n";
-$cmd = qq{s/^(;; Version:)\\s+(\\S+)[ \t]*\$/\$1 $version/;s/^(\\(defconst org-version )"(\\S+)"/\$1"$version"/};
-$c1 = "perl -pi -e '$cmd' lisp/*.el";
-system($c1);
+if (not $only) {
 
-print STDERR "doc/org.texi\n";
-$cmd = qq{s/^(\\\@set VERSION)\\s+(\\S+)[ \t]*\$/\$1 $version/;s/^(\\\@set DATE)\\s+(.*)\$/\$1 $date/;};
-$c1 = "perl -pi -e '$cmd' doc/org.texi";
-system($c1);
+  print STDERR join("\n",glob("lisp/*.el")),"\n";
+  $cmd = qq{s/^(;; Version:)\\s+(\\S+)[ \t]*\$/\$1 $version/;s/^(\\(defconst org-version )"(\\S+)"/\$1"$version"/};
+  $c1 = "perl -pi -e '$cmd' lisp/*.el";
+  system($c1);
 
-print STDERR "doc/orgcard.tex\n";
-$cmd = qq{s/^\\\\def\\\\orgversionnumber\\{\\S+\\}/\\\\def\\\\orgversionnumber{$version}/;s/\\\\def\\\\versionyear\\{\\S+\\}/\\\\def\\\\versionyear{$year}/;s/\\\\def\\\\year\\{\\S+\\}/\\\\def\\\\year{$year}/;};
-$c1 = "perl -pi -e '$cmd' doc/orgcard.tex";
-system($c1);
+  print STDERR "doc/org.texi\n";
+  $cmd = qq{s/^(\\\@set VERSION)\\s+(\\S+)[ \t]*\$/\$1 $version/;s/^(\\\@set DATE)\\s+(.*)\$/\$1 $date/;};
+  $c1 = "perl -pi -e '$cmd' doc/org.texi";
+  system($c1);
 
-print STDERR "README_DIST\n";
-$cmd = qq{s/^(The version of this release is:)\\s+(\\S+)[ \t]*\$/\$1 $version/;};
-$c1 = "perl -pi -e '$cmd' README_DIST";
-system($c1);
+  print STDERR "doc/orgcard.tex\n";
+  $cmd = qq{s/^\\\\def\\\\orgversionnumber\\{\\S+\\}/\\\\def\\\\orgversionnumber{$version}/;s/\\\\def\\\\versionyear\\{\\S+\\}/\\\\def\\\\versionyear{$year}/;s/\\\\def\\\\year\\{\\S+\\}/\\\\def\\\\year{$year}/;};
+  $c1 = "perl -pi -e '$cmd' doc/orgcard.tex";
+  system($c1);
+
+  print STDERR "README_DIST\n";
+  $cmd = qq{s/^(The version of this release is:)\\s+(\\S+)[ \t]*\$/\$1 $version/;};
+  $c1 = "perl -pi -e '$cmd' README_DIST";
+  system($c1);
+}
 
-if ($all) {
+if ($all or $only) {
   print STDERR "ORGWEBPAGE/index.org\n";
   $cmd = qq{s/^(\\* Current Version )\\(\\S+?\\)/\$1($version)/;s/^(The current version is)\\s+(\\S+)\\. /\$1 $version. /;s/org-[6-9].*?\\.(zip|tar\\.gz)/org-$version.\$1/g};
   $c1 = "perl -pi -e '$cmd' ORGWEBPAGE/index.org";