Documentation: Describe other situations where -z affects git diff

diff --git a/grep.h b/grep.h
index 970308799664fe6a3871c0b8364c13e43cf96e1f..d35bc29bfd76f27c066f40dcb3f31078b4100059 100644 (file)
--- a/grep.h
+++ b/grep.h
@@ -59,6 +59,8 @@ struct grep_expr {
 struct grep_opt {
        struct grep_pat *pattern_list;
        struct grep_pat **pattern_tail;
+       struct grep_pat *header_list;
+       struct grep_pat **header_tail;
        struct grep_expr *pattern_expression;
        const char *prefix;
        int prefix_length;