Update the documentation of the raw diff output format

diff --git a/builtin-help.c b/builtin-help.c
index 9b57a746185719eb43c962c4adb96283657692e9..e1eba778a526f500b0a65a6b112e468f04a3f869 100644 (file)
--- a/builtin-help.c
+++ b/builtin-help.c
@@ -80,10 +80,9 @@ static int check_emacsclient_version(void)
        ec_process.argv = argv_ec;
        ec_process.err = -1;
        ec_process.stdout_to_stderr = 1;
-       if (start_command(&ec_process)) {
-               fprintf(stderr, "Failed to start emacsclient.\n");
-               return -1;
-       }
+       if (start_command(&ec_process))
+               return error("Failed to start emacsclient.");
+
        strbuf_read(&buffer, ec_process.err, 20);
        close(ec_process.err);
 
@@ -94,27 +93,24 @@ static int check_emacsclient_version(void)
        finish_command(&ec_process);
 
        if (prefixcmp(buffer.buf, "emacsclient")) {
-               fprintf(stderr, "Failed to parse emacsclient version.\n");
                strbuf_release(&buffer);
-               return -1;
+               return error("Failed to parse emacsclient version.");
        }
 
        strbuf_remove(&buffer, 0, strlen("emacsclient"));
        version = atoi(buffer.buf);
 
        if (version < 22) {
-               fprintf(stderr,
-                       "emacsclient version '%d' too old (< 22).\n",
-                       version);
                strbuf_release(&buffer);
-               return -1;
+               return error("emacsclient version '%d' too old (< 22).",
+                       version);
        }
 
        strbuf_release(&buffer);
        return 0;
 }
 
-static void exec_woman_emacs(const char* path, const char *page)
+static void exec_woman_emacs(const char *path, const char *page)
 {
        if (!check_emacsclient_version()) {
                /* This works only with emacsclient version >= 22. */
@@ -128,7 +124,7 @@ static void exec_woman_emacs(const char* path, const char *page)
        }
 }
 
-static void exec_man_konqueror(const char* path, const char *page)
+static void exec_man_konqueror(const char *path, const char *page)
 {
        const char *display = getenv("DISPLAY");
        if (display && *display) {
@@ -156,7 +152,7 @@ static void exec_man_konqueror(const char* path, const char *page)
        }
 }
 
-static void exec_man_man(const char* path, const char *page)
+static void exec_man_man(const char *path, const char *page)
 {
        if (!path)
                path = "man";
@@ -236,7 +232,7 @@ static int add_man_viewer_info(const char *var, const char *value)
        const char *subkey = strrchr(name, '.');
 
        if (!subkey)
-               return error("Config with no key for man viewer: %s", name);
+               return 0;
 
        if (!strcmp(subkey, ".path")) {
                if (!value)
@@ -249,7 +245,6 @@ static int add_man_viewer_info(const char *var, const char *value)
                return add_man_viewer_cmd(name, subkey - name, value);
        }
 
-       warning("'%s': unsupported man viewer sub key.", subkey);
        return 0;
 }
 
@@ -399,7 +394,7 @@ static void get_html_page_path(struct strbuf *page_path, const char *page)
  * HTML.
  */
 #ifndef open_html
-void open_html(const char *path)
+static void open_html(const char *path)
 {
        execl_git_cmd("web--browse", "-c", "help.browser", path, NULL);
 }
@@ -424,7 +419,7 @@ int cmd_help(int argc, const char **argv, const char *prefix)
        setup_git_directory_gently(&nongit);
        git_config(git_help_config, NULL);
 
-       argc = parse_options(argc, argv, builtin_help_options,
+       argc = parse_options(argc, argv, prefix, builtin_help_options,
                        builtin_help_usage, 0);
 
        if (show_all) {