bug#22202: 24.5; SECURITY ISSUE -- Emacs Server vulnerable to random number generator attack on Windows systems

[Paul Eggert]

Andreas Schwab discovered a problem with my patch in that GnuTLS wasn't 
initialized, and reverted the GnuTLS part of it. As I understand it, newer 
versions of GnuTLS initialize themselves when they are loaded and so do not run 
into the issue; I tested with GnuTLS 3.3.15, which I suppose is new enough. I 
attempted to fix this problem in the followup commit 
130d512045aa376333b664d58c501b3884187592.

Andreas's commit also changed some unrelated style issues, which I reverted; 
that is merely a longrunning stylistic disagreement, and right now is not a good 
time to be changing style in code unrelated to fixes.