verify-patch-sanity: skip source-staged, the out-of-tree copy of source/

Out-of-tree staging made the checker scan source-staged/, which holds the same
upstream third-party patches as source/ -- already skipped because they are not
ours to fix. qtdeclarative's bundled yoga patch then failed the build at
preflight. Same rationale as the existing /source/ entry.

local/scripts/verify-patch-sanity.py

@@ -76,8 +76,15 @@ def check_patch(path):
     return problems
 
 # archived/obsolete patch trees that are not part of any active recipe
-SKIP_DIRS = ('/source/', '/.git/', '/legacy-', '/legacy/', '/obsolete',
-             '/superseded', '/absorbed/', '/recovered-', '/wip/')
+# '/source-staged/' is the out-of-tree build copy of '/source/'. It holds the
+# same upstream third-party patches (e.g. qtdeclarative's bundled yoga), which
+# are deliberately skipped here because they are not ours to fix -- but the
+# copy's name does not match the '/source/' entry, so staging made the checker
+# start reporting them:
+#   MALFORMED .../qtdeclarative/.../source-staged/src/3rdparty/yoga/patches/
+#     002-Namespace-Yoga-For-ODR-Violation.patch: hunk old count 34 != actual 31
+SKIP_DIRS = ('/source/', '/source-staged/', '/.git/', '/legacy-', '/legacy/',
+             '/obsolete', '/superseded', '/absorbed/', '/recovered-', '/wip/')
 
 def find_patches(roots):
     seen = set()