app_chanspy: Documentation Update To Clarify "x" Option

When using the "x" option (specify a DTMF digit to exit the application), it is
not obvious in the documentation that this only works when spying on a channel.
If a channel being used to spy on other channels is waiting to connect to a
channel or is no longer attached to a channel, the DTMF is ignored.

As noted on the issue tracker, since there are workarounds available and this is
a rarely used option we are opting for a documentation change here.

(closes issue ASTERISK-22661)
Reported by: Chris Hillman
Patches:
    asterisk-22661-doc-clarify-chan_spy.diff
                                     uploaded by Michael L. Young (license 5026)

Review: https://reviewboard.asterisk.org/r/2990/
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Merged revisions 408536 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 408537 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 408538 from http://svn.asterisk.org/svn/asterisk/branches/12

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@408539 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/apps/app_chanspy.c b/apps/app_chanspy.c
index 0347906..f568083 100644 (file)
--- a/apps/app_chanspy.c
+++ b/apps/app_chanspy.c
@@ -164,7 +164,9 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
                                        </option>
                                        <option name="x">
                                                <argument name="digit" required="true">
-                                                       <para>Specify a DTMF digit that can be used to exit the application.</para>
+                                                       <para>Specify a DTMF digit that can be used to exit the application while actively
+                                                       spying on a channel. If there is no channel being spied on, the DTMF digit will be
+                                                       ignored.</para>
                                                </argument>
                                        </option>
                                        <option name="X">
@@ -303,7 +305,9 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
                                        </option>
                                        <option name="x">
                                                <argument name="digit" required="true">
-                                                       <para>Specify a DTMF digit that can be used to exit the application.</para>
+                                                       <para>Specify a DTMF digit that can be used to exit the application while actively
+                                                       spying on a channel. If there is no channel being spied on, the DTMF digit will be
+                                                       ignored.</para>
                                                </argument>
                                        </option>
                                        <option name="X">