cmd: source: Clean up a few lines

This simplifies a few lines and corrects an error message.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/source.c b/cmd/source.c
index 698d9f8..5973824 100644
--- a/cmd/source.c
+++ b/cmd/source.c
@@ -128,16 +128,14 @@
 		}
 
 		if (!fit_image_check_type (fit_hdr, noffset, IH_TYPE_SCRIPT)) {
-			puts ("Not a image image\n");
+			puts("Not a script image\n");
 			return 1;
 		}
 
 		/* verify integrity */
-		if (verify) {
-			if (!fit_image_verify(fit_hdr, noffset)) {
-				puts ("Bad Data Hash\n");
-				return 1;
-			}
+		if (verify && !fit_image_verify(fit_hdr, noffset)) {
+			puts("Bad Data Hash\n");
+			return 1;
 		}
 
 		/* get script subimage data address and length */