Include filename explicitly in logging APIs

Currently the logging APIs have a 'const char *category' parameter
which indicates where the log message comes from. This is typically
a combination of the __FILE__ string and other prefix. Split the
__FILE__ off into a dedicated parameter so it can passed to the
log outputs

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

tests/testutils.c

@@ -482,8 +482,9 @@ static struct virtTestLogData testLog = { VIR_BUFFER_INITIALIZER };
 static void
 virtTestLogOutput(const char *category ATTRIBUTE_UNUSED,
                   virLogPriority priority ATTRIBUTE_UNUSED,
+                  const char *filename ATTRIBUTE_UNUSED,
+                  int lineno ATTRIBUTE_UNUSED,
                   const char *funcname ATTRIBUTE_UNUSED,
-                  int linenr ATTRIBUTE_UNUSED,
                   const char *timestamp,
                   unsigned int flags,
                   const char *rawstr ATTRIBUTE_UNUSED,