X-Forwarded-For should follow the squid way

TS will append the IP in the format of:

X-Forwarded-For: 127.0.0.1,  10.32.102.41\r\n

while http://en.wikipedia.org/wiki/X-Forwarded-For says:

X-Forwarded-For: client1, proxy1, proxy2

there is 2 spaces in TS X-Forwarded-For header.