Call xsetenv() in main process instead of child
authorDevin J. Pohly <djpohly@gmail.com>
Tue, 10 Oct 2017 15:30:23 +0000 (10:30 -0500)
committerDevin J. Pohly <djpohly@gmail.com>
Mon, 26 Feb 2018 03:53:24 +0000 (21:53 -0600)
This makes xsetenv internal to x.c, and allows iso14755's external
command to use $WINDOWID instead of having to snprintf it again.  (The
same benefit will apply to the externalpipe patch.)  The xwinid function
is no longer needed.

Signed-off-by: Devin J. Pohly <djpohly@gmail.com>

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