Fix wrong scope of var (#293)

* Fix wrong scope of var
* Fix some keys couldn't bind

cointop/keybindings.go

@@ -51,10 +51,9 @@ func (ct *Cointop) ParseKeys(s string) (interface{}, tcell.ModMask) {
 	mod := tcell.ModNone
 
 	// translate legacy and special names for keys
-	s = strings.TrimSpace(s)
+	keyName := keyMap(strings.TrimSpace(s))
-	keyName := keyMap(s)
+	if len(keyName) > 1 {
-	if len(s) > 1 {
+		keyName = strings.Replace(keyName, "+", "-", -1)
-		keyName := strings.Replace(s, "+", "-", -1)
 
 		split := strings.Split(keyName, "-")
 		if len(split) > 1 {
@@ -98,7 +97,7 @@ func (ct *Cointop) ParseKeys(s string) (interface{}, tcell.ModMask) {
 	}
 
 	if key == nil {
-		log.Debugf("Could not map key descriptio '%s' to key", s)
+		log.Debugf("Could not map key '%s' to key", s)
 	}
 	return key, mod
 }