make lineno_width() from blame reusable for others

diff --git a/builtin/blame.c b/builtin/blame.c
index 5a67c202f06abeaa90a7547d78b536f7f2b9db24..f028e8aec82d0936951418f936123041c3b516ad 100644 (file)
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -1828,18 +1828,6 @@ static int read_ancestry(const char *graft_file)
        return 0;
 }
 
-/*
- * How many columns do we need to show line numbers in decimal?
- */
-static int lineno_width(int lines)
-{
-       int i, width;
-
-       for (width = 1, i = 10; i <= lines; width++)
-               i *= 10;
-       return width;
-}
-
 /*
  * How many columns do we need to show line numbers, authors,
  * and filenames?
@@ -1880,9 +1868,9 @@ static void find_alignment(struct scoreboard *sb, int *option)
                if (largest_score < ent_score(sb, e))
                        largest_score = ent_score(sb, e);
        }
-       max_orig_digits = lineno_width(longest_src_lines);
-       max_digits = lineno_width(longest_dst_lines);
-       max_score_digits = lineno_width(largest_score);
+       max_orig_digits = decimal_width(longest_src_lines);
+       max_digits = decimal_width(longest_dst_lines);
+       max_score_digits = decimal_width(largest_score);
 }
 
 /*