typo fix

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index 07504b7..a02a504 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -234,7 +234,7 @@
 		char *s = getenv(env_name);
 		if (s) {
 			value = atoi(s);
-			/* If LINES/COLUMNS are set, pretent that there is
+			/* If LINES/COLUMNS are set, pretend that there is
 			 * no error getting w/h, this prevents some ugly
 			 * cursor tricks by our callers */
 			*err = 0;