[PATCH 13/14] diff.c: convert -W|--[no-]function-context

[Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
 diff.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/diff.c b/diff.c
index 093158244e..8f70101362 100644
--- a/diff.c
+++ b/diff.c
@@ -4896,6 +4896,8 @@ static void prep_parse_options(struct diff_options *options)
 		OPT_CALLBACK_F('U', "unified", options, N_("<n>"),
 			       N_("generate diffs with <n> lines context"),
 			       PARSE_OPT_NONEG, diff_opt_unified),
+		OPT_BOOL('W', "function-context", &options->flags.funccontext,
+			 N_("generate diffs with <n> lines context")),
 		OPT_END()
 	};
 
@@ -5212,12 +5214,6 @@ int diff_opt_parse(struct diff_options *options,
 	else if (opt_arg(arg, '\0', "inter-hunk-context",
 			 &options->interhunkcontext))
 		;
-	else if (!strcmp(arg, "-W"))
-		options->flags.funccontext = 1;
-	else if (!strcmp(arg, "--function-context"))
-		options->flags.funccontext = 1;
-	else if (!strcmp(arg, "--no-function-context"))
-		options->flags.funccontext = 0;
 	else if ((argcount = parse_long_opt("output", av, &optarg))) {
 		char *path = prefix_filename(prefix, optarg);
 		options->file = xfopen(path, "w");
-- 
2.20.1.560.g70ca8b83ee