Trim whitespace on call number search

Author: yossariano

lib/elasticsearch/elastic-query-builder.js

@@ -255,7 +255,7 @@ class ElasticQueryBuilder {
   * Require strong match on queried callnumber
   **/
   requireCallnumberMatch () {
-    const q = this.request.querySansQuotes()
+    const q = this.request.querySansQuotes().trim()
 
     this.query.addMust({
       bool: {