Merge branch 'jk/misc-fixes-maint'

* jk/misc-fixes-maint:
  apply: avoid possible bogus pointer
  fix memory leak parsing core.commentchar
  transport: fix leaks in refs_from_alternate_cb
  free ref string returned by dwim_ref
  receive-pack: don't copy "dir" parameter

builtin/rev-parse.c

@@ -151,6 +151,7 @@ static void show_rev(int type, const unsigned char *sha1, const char *name)
 				error("refname '%s' is ambiguous", name);
 				break;
 			}
+			free(full);
 		} else {
 			show_with_type(type, name);
 		}