Auto merge of ycm-core#3012 - micbou:issue-template-logs, r=micbou

[READY] Ask users to set the log level to debug when including the contents of the logfiles

When reporting an issue, users may include the contents of the logfiles with the default log level `info`, which is not really useful. Ask them to set the log level to `debug`.

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.github/ISSUE_TEMPLATE.md

@@ -62,8 +62,9 @@ quickly and that neither your nor our time is needlessly wasted.
 
 ## Contents of YCM, ycmd and completion engine logfiles
 
-> Include link here to a [gist][] containing the entire logfiles for ycm, ycmd
-> and any completer logfiles listed by `:YcmToggleLogs`.
+> Add `let g:ycm_log_level = 'debug'` to vimrc, restart Vim, reproduce the
+> issue, and include link here to a [gist][] containing the entire logfiles for
+> ycm, ycmd and any completer logfiles listed by `:YcmToggleLogs`.
 
 ## OS version, distribution, etc.