Fixed some string handling to improve speed.
Fixed some string handling to improve speed.


rockaboxmedia/pexpect,blink1073/pexpect,nodish/pexpect,rockaboxmedia/pexpect,dongguangming/pexpect,Wakeupbuddy/pexpect,dongguangming/pexpect,crdoconnor/pexpect,crdoconnor/pexpect,nodish/pexpect,Wakeupbuddy/pexpect,bangi123/pexpect,bangi123/pexpect,quatanium/pexpect,bangi123/pexpect,Depado/pexpect,nodish/pexpect,blink1073/pexpect,bangi123/pexpect,Wakeupbuddy/pexpect,dongguangming/pexpect,quatanium/pexpect,crdoconnor/pexpect,Wakeupbuddy/pexpect,blink1073/pexpect,quatanium/pexpect,Depado/pexpect,dongguangming/pexpect,Depado/pexpect,Depado/pexpect