remove additional spacing

Co-authored-by: Michael Fridman <mf192@icloud.com>

parser.go

@@ -117,7 +117,7 @@ func (p *Parser) ParseWithClaims(tokenString string, claims Claims, keyFunc Keyf
 //
 // WARNING: Don't use this method unless you know what you're doing.
 //
-// It's only ever useful in cases where you know the signature is valid (since it has already 
+// It's only ever useful in cases where you know the signature is valid (since it has already
 // been or will be checked elsewhere in the stack) and you want to extract values from it.
 func (p *Parser) ParseUnverified(tokenString string, claims Claims) (token *Token, parts []string, err error) {
 	parts = strings.Split(tokenString, ".")