[DockerImageScanner] Fixe var name

RE-1149

Change-Id: Ib7bd5ccde7d738fa301beec99c1ad13a41408f59
diff --git a/src/com/mirantis/mk/DockerImageScanner.groovy b/src/com/mirantis/mk/DockerImageScanner.groovy
index b79ab85..2816037 100644
--- a/src/com/mirantis/mk/DockerImageScanner.groovy
+++ b/src/com/mirantis/mk/DockerImageScanner.groovy
@@ -218,7 +218,7 @@
     if (infoLogFile) {
         sh """#!/bin/bash -e
             mkdir -p `dirname $infoLogFile`
-            echo "[`date +'%Y-%m-%d %H:%M:%S'`] ${errorText}" >> $infoLogFile
+            echo "[`date +'%Y-%m-%d %H:%M:%S'`] ${infoText}" >> $infoLogFile
         """
     }
 }