Index: modules/loggers/mod_log_config.c
===================================================================
--- modules/loggers/mod_log_config.c	(Revision 1556471)
+++ modules/loggers/mod_log_config.c	(Arbeitskopie)
@@ -330,6 +330,16 @@
     else if (strlen(rvalue) == 0) {
         rvalue = "\"\"";
     }
+    else if (strlen(rvalue) >= 0) {
+    	char *caUsername = apr_pstrdup(r->pool, rvalue);
+    	int n, i = strlen(caUsername);
+    	for(n = 0;n < i; n++) {
+    		if(caUsername[n] == ' ') {
+    			caUsername[n] = ':';
+    		}
+    	}
+    	rvalue = ap_escape_logitem(r->pool, caUsername);
+    }
     else {
         rvalue = ap_escape_logitem(r->pool, rvalue);
     }