38161: _tmux: Use a colon to terminate options to _arguments itself

In users/21384 it was reported that

  % tmux new-session -<tab>

...does not offer -A as a candidate for completion even though the
option is listed in the involved helper function _tmux-new-session().

-A is actually an option the _arguments function uses itself. The
documentation states:

    To avoid ambiguity, all options to _arguments itself may
    be separated from the spec forms by a single colon.

This commit changes each _arguments call to include the optional
colon, so problems like this are prevented now and hopefully in
the future.

1 files changed, 5 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 956b145e6..787e993c5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2016-03-16  Frank Terbeck  <ft@bewatermyfriend.org>
+
+	* 38161: Completion/Unix/Command/_tmux: _tmux: Use a colon to
+	terminate options to _arguments itself
+
 2016-03-15  Daniel Shahaf  <d.s@daniel.shahaf.name>
 
 	* 38155: Doc/Zsh/compsys.yo: docs: compsys: Clarify documentation