[PATCH] document virCommandRunRegex function

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>From 01a3ed1e6bacba8cd9f398e5233960714b2c4f49 Mon Sep 17 00:00:00 2001
From: Christian Loehle <cloehle@xxxxxxxxxxxxx>
Date: Mon, 23 Nov 2015 15:06:37 +0100
Subject: [PATCH] =?UTF-8?q?document=20virCommandRunRegex=20function=C3=84?=
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---
 src/util/vircommand.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/util/vircommand.c b/src/util/vircommand.c
index c7f1538..a88cc13 100644
--- a/src/util/vircommand.c
+++ b/src/util/vircommand.c
@@ -2889,12 +2889,24 @@ virCommandSetDryRun(virBufferPtr buf,
 }
 
 #ifndef WIN32
-/*
+/**
+ * virCommandRunRegex:
+ * @cmd: command to run
+ * @nregex: number of regexes to apply
+ * @regex: array of regexes to apply
+ * @nvars: array of numbers of variables each regex will produce
+ * @func: callback function that is called for every line of output,
+ * needs to return 0 on success
+ * @data: additional data that will be passed to the callback function
+ * @prefix: prefix that will be skipped at the beginning of each line
+ * @exitstatus: 0 on success, -1 on memory allocation error, virCommandRun
+ * error or callback function error
+ *
  * Run an external program.
  *
  * Read its output and apply a series of regexes to each line
  * When the entire set of regexes has matched consecutively
- * then run a callback passing in all the matches
+ * then run a callback passing in all the matches of the current line.
  */
 int
 virCommandRunRegex(virCommandPtr cmd,
-- 
2.1.4

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