Merge branch 'dl/subtree-avoid-tricky-echo'

"git subtree" script (in contrib/) used "echo -n" to produce
progress messages in a non-portable way.

* dl/subtree-avoid-tricky-echo:
  contrib/subtree: portability fix for string printing

contrib/subtree/git-subtree.sh

@@ -51,14 +51,21 @@ prefix=
 debug()
 {
 	if [ -n "$debug" ]; then
-		echo "$@" >&2
+		printf "%s\n" "$*" >&2
 	fi
 }
 
 say()
 {
 	if [ -z "$quiet" ]; then
-		echo "$@" >&2
+		printf "%s\n" "$*" >&2
+	fi
+}
+
+progress()
+{
+	if [ -z "$quiet" ]; then
+		printf "%s\r" "$*" >&2
 	fi
 }
 
@@ -599,7 +606,7 @@ cmd_split()
 	eval "$grl" |
 	while read rev parents; do
 		revcount=$(($revcount + 1))
-		say -n "$revcount/$revmax ($createcount)
"
+		progress "$revcount/$revmax ($createcount)"
 		debug "Processing commit: $rev"
 		exists=$(cache_get $rev)
 		if [ -n "$exists" ]; then