More process-related doc and manual small edits

* doc/lispref/processes.texi (Output from Processes, Filter Functions):
Mention waiting-for-user-input-p.
(Sentinels, Query Before Exit, System Processes, Transaction Queues):
(Network Servers, Datagrams, Network Processes, Network Options)
(Network Feature Testing, Serial Ports): Copyedits.
(Network): Add encrypted network overview paragraph.
Cross-reference the Emacs-GnuTLS manual.  Use @acronym.

* lisp/net/network-stream.el (open-network-stream): Doc fix.

* src/process.c (Fset_process_inherit_coding_system_flag)
(Fset_process_query_on_exit_flag): Doc fix (mention return value).
(Fmake_network_process): Doc fix.

1 files changed, 6 insertions, 3 deletions

diff --git a/src/process.c b/src/process.c
index dc43191ebef..f6ea5d75e1a 100644
--- a/src/process.c
+++ b/src/process.c
@@ -1070,7 +1070,9 @@ is more appropriate for saving the process buffer.
 
 Binding the variable `inherit-process-coding-system' to non-nil before
 starting the process is an alternative way of setting the inherit flag
-for the process which will run.  */)
+for the process which will run.
+
+This function returns FLAG.  */)
   (register Lisp_Object process, Lisp_Object flag)
 {
   CHECK_PROCESS (process);
@@ -1083,7 +1085,8 @@ DEFUN ("set-process-query-on-exit-flag",
        2, 2, 0,
        doc: /* Specify if query is needed for PROCESS when Emacs is exited.
 If the second argument FLAG is non-nil, Emacs will query the user before
-exiting or killing a buffer if PROCESS is running.  */)
+exiting or killing a buffer if PROCESS is running.  This function
+returns FLAG.  */)
   (register Lisp_Object process, Lisp_Object flag)
 {
   CHECK_PROCESS (process);
@@ -2794,7 +2797,7 @@ The stopped state is cleared by `continue-process' and set by
 :filter-multibyte BOOL -- If BOOL is non-nil, strings given to the
 process filter are multibyte, otherwise they are unibyte.
 If this keyword is not specified, the strings are multibyte if
-`default-enable-multibyte-characters' is non-nil.
+the default value of `enable-multibyte-characters' is non-nil.
 
 :sentinel SENTINEL -- Install SENTINEL as the process sentinel.