Merge branch 'ep/varscope'

Shrink lifetime of variables by moving their definitions to an
inner scope where appropriate.

* ep/varscope:
  builtin/gc.c: reduce scope of variables
  builtin/fetch.c: reduce scope of variable
  builtin/commit.c: reduce scope of variables
  builtin/clean.c: reduce scope of variable
  builtin/blame.c: reduce scope of variables
  builtin/apply.c: reduce scope of variables
  bisect.c: reduce scope of variable

bisect.c

@@ -685,7 +685,6 @@ static void mark_expected_rev(char *bisect_rev_hex)
 
 static int bisect_checkout(char *bisect_rev_hex, int no_checkout)
 {
-	int res;
 
 	mark_expected_rev(bisect_rev_hex);
 
@@ -696,6 +695,7 @@ static int bisect_checkout(char *bisect_rev_hex, int no_checkout)
 			die("update-ref --no-deref HEAD failed on %s",
 			    bisect_rev_hex);
 	} else {
+		int res;
 		res = run_command_v_opt(argv_checkout, RUN_GIT_CMD);
 		if (res)
 			exit(res);