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[libvirt] [PATCH 06/10] util: error: Improve docs for virErrorMsg



Clarify how @info is used and how the returned values look like.

Signed-off-by: Peter Krempa <pkrempa redhat com>
---
 src/util/virerror.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/util/virerror.c b/src/util/virerror.c
index be23712a60..7444d671bb 100644
--- a/src/util/virerror.c
+++ b/src/util/virerror.c
@@ -906,12 +906,14 @@ void virRaiseErrorObject(const char *filename,
 /**
  * virErrorMsg:
  * @error: the virErrorNumber
- * @info: usually the first parameter string
+ * @info: additional info string
  *
- * Internal routine to get the message associated to an error raised
- * from the library
+ * Internal routine to get the message associated to @error raised
+ * from the library.
  *
- * Returns the constant string associated to @error
+ * Returns a *printf format string which describes @error. The returned string
+ * contains exactly one '%s' modifier if @info is non-NULL, or no modifiers at
+ * all if @info is NULL. If @error is invalid NULL is returned.
  */
 const char *
 virErrorMsg(virErrorNumber error, const char *info)
-- 
2.19.2


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