Switch to side-by-side view

--- a/src/utils/readfile.cpp
+++ b/src/utils/readfile.cpp
@@ -49,7 +49,7 @@
     if (reason) {
 	reason->append(what);
 	reason->append(": errno: ");
-	char nbuf[10];
+	char nbuf[20];
 	sprintf(nbuf, "%d", _errno);
 	reason->append(nbuf);
 	reason->append(" : ");