(main): Allow `+' in options like -+8 and -+13.

diff --git a/src/nice.c b/src/nice.c
index e05cf7938357867a93a9fd32a9a976e79fe04570..c9e27131398fb1cc386436571448a69963175567 100644 (file)
--- a/src/nice.c
+++ b/src/nice.c
@@ -84,8 +84,11 @@ main (int argc, char **argv)
          adjustment_given = 1;
          ++optind;
        }
-      else if (s[0] == '-' && ISDIGIT (s[1]))
+      else if (s[0] == '-' && (ISDIGIT (s[1])
+                              || (s[1] == '+' && ISDIGIT (s[2]))))
        {
+         if (s[1] == '+')
+           ++s;
          if (!isinteger (&s[1]))
            error (1, 0, _("invalid option `%s'"), s);