Merge pull request #144 from positiveEV/patch-1

Fix non boolean conditional for ansible 2.19

Author: geerlingguy

tasks/main.yml

@@ -64,6 +64,6 @@
 
 # Create cores, if any are configured.
 - include_tasks: cores.yml
-  when: "solr_cores and solr_version.split('.')[0] >= '5'"
+  when: "solr_cores is defined and solr_version.split('.')[0] >= '5'"
 
 - include_tasks: trim-fat.yml