git-log: put space after commit mark

Currently, commit marks (left, right, boundary, cherry) are output right
before the commit sha1, which makes it difficult to copy sha1s. Sample
output for "git log --oneline --cherry":

=049c269 t6007: test rev-list --cherry

Change this to

= 049c269 t6007: test rev-list --cherry

which matches exactly the current output of "git log --graph".

Leave "git rev-list" output as is (no space) so that they do not break.

Adjust "git-svn" which uses "git log --pretty=raw --boundary".

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/git-svn.perl b/git-svn.perl
index 177dd25..a5857c1 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -5734,7 +5734,7 @@
 	my (@k, $c, $d, $stat);
 	my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
 	while (<$log>) {
-		if (/^${esc_color}commit -?($::sha1_short)/o) {
+		if (/^${esc_color}commit (- )?($::sha1_short)/o) {
 			my $cmt = $1;
 			if ($c && cmt_showable($c) && $c->{r} != $r_last) {
 				$r_last = $c->{r};
diff --git a/log-tree.c b/log-tree.c
index 1257040..2a1e3a9 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -381,7 +381,7 @@
 		graph_show_commit(opt->graph);
 
 		if (!opt->graph)
-			fputs(get_revision_mark(opt, commit), stdout);
+			put_revision_mark(opt, commit);
 		fputs(find_unique_abbrev(commit->object.sha1, abbrev_commit), stdout);
 		if (opt->print_parents)
 			show_parents(commit, abbrev_commit);
@@ -439,7 +439,7 @@
 			fputs("commit ", stdout);
 
 		if (!opt->graph)
-			fputs(get_revision_mark(opt, commit), stdout);
+			put_revision_mark(opt, commit);
 		fputs(find_unique_abbrev(commit->object.sha1, abbrev_commit),
 		      stdout);
 		if (opt->print_parents)
diff --git a/revision.c b/revision.c
index 51372f6..626f6a2 100644
--- a/revision.c
+++ b/revision.c
@@ -2302,3 +2302,12 @@
 		return "+";
 	return "";
 }
+
+void put_revision_mark(const struct rev_info *revs, const struct commit *commit)
+{
+	char *mark = get_revision_mark(revs, commit);
+	if (!strlen(mark))
+		return;
+	fputs(mark, stdout);
+	putchar(' ');
+}
diff --git a/revision.h b/revision.h
index d38f135..1c0abf0 100644
--- a/revision.h
+++ b/revision.h
@@ -168,6 +168,7 @@
 extern int prepare_revision_walk(struct rev_info *revs);
 extern struct commit *get_revision(struct rev_info *revs);
 extern char *get_revision_mark(const struct rev_info *revs, const struct commit *commit);
+extern void put_revision_mark(const struct rev_info *revs, const struct commit *commit);
 
 extern void mark_parents_uninteresting(struct commit *commit);
 extern void mark_tree_uninteresting(struct tree *tree);