Avoid passing negative values to isspace() on systems with signed chars.

svn path=/head/; revision=132200
2004-07-15 08:27:04 +00:00 · 2004-07-15 08:27:04 +00:00 · 80209ec51c · 2020-12-20 02:59:44 +00:00
commit 80209ec51c
parent 3e019deaed
1 changed files with 1 additions and 1 deletions
--- a/usr.bin/fmt/fmt.c
+++ b/usr.bin/fmt/fmt.c
@ -580,7 +580,7 @@ center_stream(FILE *stream, const char *name) {
  size_t length;
  while ((line=get_line(stream, &length)) != 0) {
    size_t l=length;
-    while (l>0 && isspace(*line)) { ++line; --l; }
+    while (l>0 && isspace((unsigned char)*line)) { ++line; --l; }
    length=l;
    while (l<goal_length) { putchar(' '); l+=2; }
    fwrite(line, 1, length, stdout);