reset delete-flag

Since 'PathFormat' objects are being reused, setting `delete`
to True once caused all files downloaded after to be deleted as well.

gallery_dl/util.py

@@ -474,6 +474,7 @@ class PathFormat():
     def finalize(self):
         """Move tempfile to its target location"""
         if self.delete:
+            self.delete = False
             os.unlink(self.temppath)
             return
 

test/test_results.py

@@ -22,6 +22,8 @@ TRAVIS_SKIP = {
 
 # temporary issues, etc.
 BROKEN = {
+    "senmanga",
+    "smugmug",
     "whatisthisimnotgoodwithcomputers",
 }