include the operator in the 'unexpected operator' error message

pkg/analyze/text_analyze.go

@@ -1,6 +1,7 @@
 package analyzer
 
 import (
+	"fmt"
 	"path/filepath"
 	"regexp"
 	"strconv"
@@ -215,7 +216,7 @@ func compareRegex(conditional string, foundMatches map[string]string) (bool, err
 	} else {
 		// all we can support is "=" and "==" and "===" for now
 		if operator != "=" && operator != "==" && operator != "===" {
-			return false, errors.New("unexpected operator in regex comparator")
+			return false, fmt.Errorf("unexpected operator %q in regex comparator", operator)
 		}
 
 		return foundValue == lookForValue, nil