master b612821: call-process doc string clarification

[Lars Ingebrigtsen]

branch: master
commit b61282138804d126a53d718f2d2b0549bf087afa
Author: Lars Ingebrigtsen <larsi@gnus.org>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    call-process doc string clarification
    
    * src/callproc.c (Fcall_process): Explicitly say that "output"
    means both stdout and stderr (bug#37906).
---
 src/callproc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/callproc.c b/src/callproc.c
index 675b78d..fa43f97 100644
--- a/src/callproc.c
+++ b/src/callproc.c
@@ -232,6 +232,8 @@ directory where the process is run (see below).  If you 
want to make the
 input come from an Emacs buffer, use `call-process-region' instead.
 
 Third argument DESTINATION specifies how to handle program's output.
+(\"Output\" here means both standard output and standard error
+output.)
 If DESTINATION is a buffer, or t that stands for the current buffer,
  it means insert output in that buffer before point.
 If DESTINATION is nil, it means discard output; 0 means discard