look: remove extra semicolon

The both macro SKIP_PAST_NEWLINE and location where macro is used will
not need semicolon at the end of line.

Signed-off-by: Sami Kerola <kerolasa@iki.fi>

misc-utils/look.c

@@ -243,7 +243,7 @@ look(char *front, char *back)
  *	more trouble than it's worth.
  */
 #define	SKIP_PAST_NEWLINE(p, back) \
-	while (p < back && *p++ != '\n');
+	while (p < back && *p++ != '\n')
 
 char *
 binary_search(char *front, char *back)