[Patch] Qualify standard functions with std:: in stl_algo.h

[Gabriel Dos Reis]

Paolo Carlini <pcarlini@unitus.it> writes:

| Gabriel Dos Reis wrote:
| 
| >Hi Paolo,
| >
| >  Thanks for looking into this.  Is it possible for you to resend the
| >patch as produced with "diff -u", i.e. in a unified context form?
| >That makes it easier to review.  Thanks in advance,
| >
| Well, it's already in that form: I _always_ use diff -urN...

You're right.  Actually I meant "diff -p". Sorry for being a pain in
the ass.

-- Gaby