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-rw-r--r--doc/api-popen.texi3
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/api-popen.texi b/doc/api-popen.texi
index fe8c822..f4a1a01 100644
--- a/doc/api-popen.texi
+++ b/doc/api-popen.texi
@@ -19,6 +19,9 @@ terminal. The terminal is needed to run such commands as @code{top}. Thus,
to run @code{top} on the remote side you need to open a remote pipe with "t"
flag set.
+@strong{Note} that when a PTY is used, a server merges stderr stream with
+stdout.
+
Values of the aforementioned constants:
@table @samp