Crashing on open() calls

[kmvanbrunt]

Some calls to open() are not surrounded by a try and are crashing.

help > ~/fakedir/file (Crashes with FileNotFoundError)

help > ~/sdkfhksdjfhkjdshfkjsdhfkjsdhfkjdshfkjdshfkjshdfkhdsfkjhewfuihewiufhweiufhiweufhiuewhiuewhfiuwehfiuewhfiuewhfiuewhfiuewhiuewhfiuewhfiuewfhiuwehewiufhewiuhfiweuhfiuwehfiuewfhiuwehiuewfhiuewhiewuhfiuewhfiuwefhewiuhewiufhewiufhewiufhewiufhewiufhewiufhewiufhewiuhewiufhewiufhewiuheiufhiuewheiwufhewiufheiufheiufhieuwhfewiuhfeiufhiuewfhiuewheiwuhfiuewhfiuewhfeiuwfhewiufhiuewhiuewhfeiuwhfiuwehfuiwehfiuehiuewhfieuwfhieufhiuewhfeiuwfhiuefhueiwhfw (Crashes with OSError because the file name is too long)

All open() calls need to be checked for this issue.

[tleonhardt]

The fix for this should preferably be backported to the python2 branch.