Update query.go

Author: sfc-gh-tvidyasankar

query.go

@@ -42,13 +42,12 @@ func (f QueryMatcherFunc) Match(expectedSQL, actualSQL string) error {
 // QueryMatcherRegexp is the default SQL query matcher
 // used by sqlmock. It parses expectedSQL to a regular
 // expression and attempts to match actualSQL.
-var QueryMatcherRegexp QueryMatcher = QueryMatcherFunc(func(expectedSQL, actualSQL string) error {
-	if actual != "" and expect == "" {
-		return fmt.Errorf("expectedSQL can't be empty")
-	}
-	
+var QueryMatcherRegexp QueryMatcher = QueryMatcherFunc(func(expectedSQL, actualSQL string) error {	
 	expect := stripQuery(expectedSQL)
 	actual := stripQuery(actualSQL)
+	if actual != "" && expect == "" {
+		return fmt.Errorf("expectedSQL can't be empty")
+	}
 	re, err := regexp.Compile(expect)
 	if err != nil {
 		return err