blocked_find_target_city() case fall through without fcfallthrough
Noticed on S3_0. blocked_find_target_city() has a case fall through with a comment, but with no fcfallthrough
Similarly in blocked_find_target_tile()
There was more /* Fall through */ comments. All of them handled in the attached patches.
Noticed on S3_0. blocked_find_target_city() has a case fall through with a comment, but with no fcfallthrough