help: make help_unknown_ref() NORETURN

diff --git a/diff.c b/diff.c
index 80ddc1167157d9da5d6426e9bb548f67705c2c19..1ccd96bbfde23a0f6d42104e81f78e0953c1bc93 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -4206,6 +4206,8 @@ static void run_external_diff(const char *pgm,
        argv_array_pushf(&env, "GIT_DIFF_PATH_COUNTER=%d", ++o->diff_path_counter);
        argv_array_pushf(&env, "GIT_DIFF_PATH_TOTAL=%d", q->nr);
 
+       diff_free_filespec_data(one);
+       diff_free_filespec_data(two);
        if (run_command_v_opt_cd_env(argv.argv, RUN_USING_SHELL, NULL, env.argv))
                die(_("external diff died, stopping at %s"), name);
 
@@ -5354,7 +5356,7 @@ static void prep_parse_options(struct diff_options *options)
                             N_("show the given source prefix instead of \"a/\""),
                             PARSE_OPT_NONEG),
                OPT_STRING_F(0, "dst-prefix", &options->b_prefix, N_("<prefix>"),
-                            N_("show the given source prefix instead of \"b/\""),
+                            N_("show the given destination prefix instead of \"b/\""),
                             PARSE_OPT_NONEG),
                OPT_CALLBACK_F(0, "line-prefix", options, N_("<prefix>"),
                               N_("prepend an additional prefix to every line of output"),
@@ -5455,13 +5457,13 @@ static void prep_parse_options(struct diff_options *options)
                               N_("equivalent to --word-diff=color --word-diff-regex=<regex>"),
                               PARSE_OPT_NONEG | PARSE_OPT_OPTARG, diff_opt_color_words),
                OPT_CALLBACK_F(0, "color-moved", options, N_("<mode>"),
-                              N_("move lines of code are colored differently"),
+                              N_("moved lines of code are colored differently"),
                               PARSE_OPT_OPTARG, diff_opt_color_moved),
                OPT_CALLBACK_F(0, "color-moved-ws", options, N_("<mode>"),
                               N_("how white spaces are ignored in --color-moved"),
                               0, diff_opt_color_moved_ws),
 
-               OPT_GROUP(N_("Diff other options")),
+               OPT_GROUP(N_("Other diff options")),
                OPT_CALLBACK_F(0, "relative", options, N_("<prefix>"),
                               N_("when run from subdir, exclude changes outside and show relative paths"),
                               PARSE_OPT_NONEG | PARSE_OPT_OPTARG,