tests: allow version strings with a -dirty suffix for debug builds

Author: ipetkov

cli/tests/test_global_opts.rs

@@ -53,6 +53,10 @@ fn test_version() {
     let expected = [
         "jj ?.??.?\n",
         "jj ?.??.?-????????????????????????????????????????\n",
+        // Allow users of Nix to build with a dirty (uncommitted) revision
+        // but disallow this for release builds so that we can avoid releasing such a version
+        #[cfg(debug_assertions)]
+        "jj ?.??.?-?irty\n",
         // This test could be made to succeed when `jj` is compiled at a merge commit by adding a
         // few entries like "jj ?.??.?-????????????????????????????????????????-?????????????????
         // ???????????????????????\n" here. However, it might be best to keep it failing, so that