client: fix spelling mistake

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
diff --git a/clients/smoke.c b/clients/smoke.c
index 77120b4..cedd17f 100644
--- a/clients/smoke.c
+++ b/clients/smoke.c
@@ -260,7 +260,7 @@
 {
 	struct smoke *smoke = data;
 
-	/* Dont resize me */
+	/* Don't resize me */
 	widget_set_size(smoke->widget, smoke->width, smoke->height);
 }