[rubygems/rubygems] Don't show bug report template when GEM_HOME has no writable bit

Instead, don't check that at all and proceed. If something fails to be
written inside GEM_HOME, we'll eventually fail with a proper permissions
error.

In addition to that, the writable bit in GEM_HOME is not even reliable,
because only the immediate parent is actually checked when writing. For
example,

```
$ mkdir -p foo/bar
$ chmod -w foo
$ touch foo/bar/baz # writes without issue
```

https://github.com/rubygems/rubygems/commit/4bced7ac73

0 files changed, 0 insertions, 0 deletions