mi: Mention extension loading in verbose logs

Listing the extensions is useful, despite being annoying for normal
usecases. Print it only when extra (lvl 3) vebose is requested.

v2: Move the logging to InitExtensions(), as requested by Adam.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

mi/miinitext.c

@@ -104,6 +104,7 @@ SOFTWARE.
 #include "nonsdk_extinit.h"
 #endif
 #include "micmap.h"
+#include "os.h"
 #include "globals.h"
 
 /* List of built-in (statically linked) extensions */
@@ -260,6 +261,9 @@ InitExtensions(int argc, char *argv[])
         ext = &ExtensionModuleList[i];
         if (ext->initFunc != NULL &&
             (ext->disablePtr == NULL || !*ext->disablePtr)) {
+            LogMessageVerb(X_INFO, 3, "Initializing extension %s\n",
+                           ext->name);
+
             (ext->initFunc) ();
         }
     }