[boost] [string_algo] trim_left should be trim_head

From: Yuval Ronen (ronen_yuval_at_[hidden])
Date: 2006-07-02 17:30:38

After reading Jeff's post about super_string, it suddenly hit me: on RTL 
languages, the head of the string is actually the right side, so 
trim_left/trim_right should really be trim_head/trim_tail... I know that 
the left/right names for trimming are de-facto standard. In fact, they 
are so rooted, that even a native Hebrew speaker like me didn't get it 
until just now... But I think that if we want to be 100% accurate, then 
the head/tail names are more correct.

Yuval