rerere: fix an off-by-one non-bug

diff --git a/line-log.c b/line-log.c
index 1008e722584c882ac86b936307ace701b9225aaf..1a6bc5921b4890273e4e9edab4d456cc27fd4064 100644 (file)
--- a/line-log.c
+++ b/line-log.c
@@ -533,7 +533,7 @@ static void fill_line_ends(struct diff_filespec *spec, long *lines,
        }
 
        /* shrink the array to fit the elements */
-       ends = xrealloc(ends, cur * sizeof(*ends));
+       REALLOC_ARRAY(ends, cur);
        *lines = cur-1;
        *line_ends = ends;
 }
@@ -575,7 +575,7 @@ parse_lines(struct commit *commit, const char *prefix, struct string_list *args)
 
                name_part = skip_range_arg(item->string);
                if (!name_part || *name_part != ':' || !name_part[1])
-                       die("-L argument '%s' not of the form start,end:file",
+                       die("-L argument not 'start,end:file' or ':funcname:file': %s",
                            item->string);
                range_part = xstrndup(item->string, name_part - item->string);
                name_part++;
@@ -1141,6 +1141,9 @@ static int process_ranges_merge_commit(struct rev_info *rev, struct commit *comm
        int i;
        int nparents = commit_list_count(commit->parents);
 
+       if (nparents > 1 && rev->first_parent_only)
+               nparents = 1;
+
        diffqueues = xmalloc(nparents * sizeof(*diffqueues));
        cand = xmalloc(nparents * sizeof(*cand));
        parents = xmalloc(nparents * sizeof(*parents));