unpack-trees: do not capitalize "working"

In English, only proper nouns are capitalized.

Signed-off-by: Alex Henrie <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: alexhenrie

unpack-trees.c

@@ -123,9 +123,9 @@ void setup_unpack_trees_porcelain(struct unpack_trees_options *opts,
 	msgs[ERROR_SPARSE_NOT_UPTODATE_FILE] =
 		_("Cannot update sparse checkout: the following entries are not up-to-date:\n%s");
 	msgs[ERROR_WOULD_LOSE_ORPHANED_OVERWRITTEN] =
-		_("The following Working tree files would be overwritten by sparse checkout update:\n%s");
+		_("The following working tree files would be overwritten by sparse checkout update:\n%s");
 	msgs[ERROR_WOULD_LOSE_ORPHANED_REMOVED] =
-		_("The following Working tree files would be removed by sparse checkout update:\n%s");
+		_("The following working tree files would be removed by sparse checkout update:\n%s");
 
 	opts->show_all_errors = 1;
 	/* rejected paths may not have a static buffer */