removal of automatic space in cmd with SETTINGS_COMMAND_REPLACE_STR

backend.c

@@ -100,13 +100,13 @@ char* parse_cmd(const char *cmd, file *f){
 	pos = out;
 	if (offset) {
 		memcpy(pos, cmd, offset - cmd);
-		pos += offset - cmd + 1; 
+		pos += offset - cmd;
 	} else {
 		memcpy(pos, cmd, strlen(cmd));
 		pos += strlen(cmd) + 1;
+		pos[-1] = ' ';
 	}
-	pos[-1] = ' ';
-	pos[0] = '\'';
+	*pos = '\'';
 	pos++;
 
 	i = 0;