stdio: add printf %N.Ms test where M > strlen(arg)

.gitignore

@@ -1,6 +1,7 @@
 # Build files
 /build-fx
 /build-cg
+/build-cg-push
 /*.g1a
 /*.g3a
 

src/stdio/printf.c

@@ -191,6 +191,7 @@ static struct printf_test const usual_tests[] = {
 	{ "%p",       PTR(0xa44b0000),        "0xa44b0000"     },
 	/* Characters and strings */
 	{ "%s",       STR("HellWrld!"),       "HellWrld!"      },
+	{ "[%-8.5s]", STR("He"),              "[He      ]"     },
 	{ "%-8.5s",   STR("Hello, World!"),   "Hello   "       },
 	{ "%c",       I32(100),               "d"              },
 	{ "%6c",      I32('#'),               "     #",        },