Make mktexlsr work even in root's home

OBS-URL: https://build.opensuse.org/package/show/Publishing:TeXLive/texlive?expand=0&rev=388

public.c

@@ -176,7 +176,7 @@ int main(int argc, char *argv[])
 	    if (access(cwd, X_OK) < 0) {
 		int ret = chdir(pwd->pw_dir);
 		if (ret < 0)
-		    fprintf(stderr, "public: %m\n");
+		    fprintf(stderr, "public: %s: %m\n", pwd->pw_dir);
 	    }
 	    free(cwd);
 	}