[PATCH 5/6] line-log: mention both modes in 'blame' and 'log' short help

["Philippe Blain via GitGitGadget" <gitgitgadget@gmail.com>]

From: Philippe Blain <levraiphilippeblain@gmail.com>

'git blame -h' and 'git log -h' both show '-L <n,m>' and describe this
option as "Process only line range n,m, counting from 1". No hint is
given that a function name regex can also be used.

Use <range> instead, and expand the description of the option to mention
both modes. Remove "counting from 1" as it's uneeded; it's uncommon to
refer to the first line of a file as "line 0".

Also, for 'git log', improve the wording to better reflect the long help.

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
---
 builtin/blame.c | 3 ++-
 builtin/log.c   | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/builtin/blame.c b/builtin/blame.c
index bb0f29300e..05f69211dd 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -889,7 +889,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 		OPT_STRING(0, "contents", &contents_from, N_("file"), N_("Use <file>'s contents as the final image")),
 		OPT_CALLBACK_F('C', NULL, &opt, N_("score"), N_("Find line copies within and across files"), PARSE_OPT_OPTARG, blame_copy_callback),
 		OPT_CALLBACK_F('M', NULL, &opt, N_("score"), N_("Find line movements within and across files"), PARSE_OPT_OPTARG, blame_move_callback),
-		OPT_STRING_LIST('L', NULL, &range_list, N_("n,m"), N_("Process only line range n,m, counting from 1")),
+		OPT_STRING_LIST('L', NULL, &range_list, N_("range"),
+				N_("Process only the given line range (<range>=<start>,<end>) or function (<range>=:<funcname>)")),
 		OPT__ABBREV(&abbrev),
 		OPT_END()
 	};
diff --git a/builtin/log.c b/builtin/log.c
index 0a7ed4bef9..e6a3bb7803 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -183,8 +183,8 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
 				N_("pattern"), N_("do not decorate refs that match <pattern>")),
 		OPT_CALLBACK_F(0, "decorate", NULL, NULL, N_("decorate options"),
 			       PARSE_OPT_OPTARG, decorate_callback),
-		OPT_CALLBACK('L', NULL, &line_cb, "n,m:file",
-			     N_("Process line range n,m in file, counting from 1"),
+		OPT_CALLBACK('L', NULL, &line_cb, "range:file",
+			     N_("Trace the evolution of the given line range (<range>=<start>,<end>) or function (<range>=:<funcname>) in <file>"),
 			     log_line_range_callback),
 		OPT_END()
 	};
-- 
gitgitgadget