Update usage output in find_img.py

Thanks, @toothstone

Co-authored-by: toothstone <[email protected]>
Signed-off-by: Kurt Garloff <[email protected]>

Author: garloff

user-docs/usage-hints/find-image/find_img.py

@@ -103,7 +103,7 @@ def find_image(conn, distro, version, purpose="generic", strict=False, log=None)
 
 def usage():
     "Usage hints (CLI)"
-    print("Usage: find-img.sh [-s] DISTRO VERSION [PURPOSE]", file=sys.stderr)
+    print("Usage: find-img.py [-s] DISTRO VERSION [PURPOSE]", file=sys.stderr)
     print("Returns all images matching, latest first, purpose defaulting to generic", file=sys.stderr)
     print("[-s] sets strict mode where only one match is allowed.", file=sys.stderr)
     print("You need to have OS_CLOUD set when running this", file=sys.stderr)