Fix Flogger formatting of exception in AutoAdjustCachesCommand

Change-Id: I1b971e57ae5c1a77d61a0f609ca2e4c7b7d7a91f

src/main/java/com/googlesource/gerrit/modules/cache/chroniclemap/AutoAdjustCachesCommand.java

diff --git a/src/main/java/com/googlesource/gerrit/modules/cache/chroniclemap/AutoAdjustCachesCommand.java b/src/main/java/com/googlesource/gerrit/modules/cache/chroniclemap/AutoAdjustCachesCommand.java
index de41471..580bd98 100644
--- a/src/main/java/com/googlesource/gerrit/modules/cache/chroniclemap/AutoAdjustCachesCommand.java
+++ b/src/main/java/com/googlesource/gerrit/modules/cache/chroniclemap/AutoAdjustCachesCommand.java
@@ -86,7 +86,7 @@
       stderr.println(e.getLocalizedMessage());
       throw e;
     } catch (IOException e) {
-      logger.atSevere().log("Could not create new cache", e);
+      logger.atSevere().withCause(e).log("Could not create new cache");
       stderr.println(String.format("Could not create new cache : %s", e.getLocalizedMessage()));
     }
   }