docs: drop antique comment from Makefile

diff --git a/grep.h b/grep.h
index 73b28c2df7ca4c9c6e29c759e11a5fb55cfbb7b9..ed7de6bec8e604a7b3dcb9f9a19053696b7c3fdf 100644 (file)
--- a/grep.h
+++ b/grep.h
@@ -38,7 +38,7 @@ struct grep_pat {
        const char *origin;
        int no;
        enum grep_pat_token token;
-       const char *pattern;
+       char *pattern;
        size_t patternlen;
        enum grep_header_field field;
        regex_t regexp;
@@ -152,6 +152,7 @@ int grep_source_load(struct grep_source *gs);
 void grep_source_clear_data(struct grep_source *gs);
 void grep_source_clear(struct grep_source *gs);
 void grep_source_load_driver(struct grep_source *gs);
+int grep_source_is_binary(struct grep_source *gs);
 
 int grep_source(struct grep_opt *opt, struct grep_source *gs);