git-remote: list branches in vertical lists

Previously, branches were listed on a single line in each section. But
if there are many branches, then horizontal, line-wrapped lists are very
inconvenient to scan for a human. This makes the lists vertical, i.e one
branch per line is printed.

Since "git remote" is porcelain, we can easily make this
backwards-incompatible change.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/user-manual.txt

@@ -4356,7 +4356,9 @@ $ git remote show example	# get details
 * remote example
   URL: git://example.com/project.git
   Tracked remote branches
-    master next ...
+    master
+    next
+    ...
 $ git fetch example		# update branches from example
 $ git branch -r			# list all remote branches
 -----------------------------------------------

builtin-remote.c

@@ -414,8 +414,7 @@ static void show_list(const char *title, struct string_list *list,
 	printf(title, list->nr > 1 ? "es" : "", extra_arg);
 	printf("\n");
 	for (i = 0; i < list->nr; i++)
-		printf("%s%s", i ? " " : "", list->items[i].string);
-	printf("\n");
+		printf("    %s\n", list->items[i].string);
 }
 
 static int get_remote_ref_states(const char *name,
@@ -516,12 +515,12 @@ static int show(int argc, const char **argv)
 					"es" : "");
 			for (i = 0; i < states.remote->push_refspec_nr; i++) {
 				struct refspec *spec = states.remote->push + i;
-				printf(" %s%s%s%s", spec->force ? "+" : "",
+				printf("    %s%s%s%s\n",
+				       spec->force ? "+" : "",
 				       abbrev_branch(spec->src),
 				       spec->dst ? ":" : "",
 				       spec->dst ? abbrev_branch(spec->dst) : "");
 			}
-			printf("\n");
 		}
 
 		/* NEEDSWORK: free remote */

t/t5505-remote.sh

@@ -28,7 +28,7 @@ tokens_match () {
 }
 
 check_remote_track () {
-	actual=$(git remote show "$1" | sed -n -e '$p') &&
+	actual=$(git remote show "$1" | sed -e '1,/Tracked/d') &&
 	shift &&
 	tokens_match "$*" "$actual"
 }
@@ -115,9 +115,11 @@ cat > test/expect << EOF
   New remote branch (next fetch will store in remotes/origin)
     master
   Tracked remote branches
-    side master
+    side
+    master
   Local branches pushed with 'git push'
-    master:upstream +refs/tags/lastbackup
+    master:upstream
+    +refs/tags/lastbackup
 EOF
 
 test_expect_success 'show' '
@@ -144,9 +146,11 @@ cat > test/expect << EOF
   Remote branch merged with 'git pull' while on branch master
     master
   Tracked remote branches
-    master side
+    master
+    side
   Local branches pushed with 'git push'
-    master:upstream +refs/tags/lastbackup
+    master:upstream
+    +refs/tags/lastbackup
 EOF
 
 test_expect_success 'show -n' '