Dump NoSuchProjectException message to debug.

Change-Id: I95df4fc1ec31735a6b409f56cef0f8a452601291
diff --git a/src/main/java/com/googlesource/gerrit/plugins/findowners/Config.java b/src/main/java/com/googlesource/gerrit/plugins/findowners/Config.java
index 1b5bcd9..fdadc2b 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/findowners/Config.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/findowners/Config.java
@@ -101,7 +101,7 @@
         }
         return name;
       } catch (NoSuchProjectException e) {
-        log.error("Cannot find project: " + project);
+        log.error("Cannot find project: " + project, e);
       }
     }
     return OWNERS;
@@ -121,7 +121,7 @@
               .getFromProjectConfigWithInheritance(project, PLUGIN_NAME)
               .getInt(MIN_OWNER_VOTE_LEVEL, minOwnerVoteLevel);
     } catch (NoSuchProjectException e) {
-      log.error("Cannot find project: " + project);
+      log.error("Cannot find project: " + project, e);
       return minOwnerVoteLevel;
     }
   }