comp.c: Fix name clash with ZLIB macro "compress" (#418)
comp.c: Fix name clash with ZLIB macro "compress" (#418)

File: comp.c

Notes:
* Fix name clash with ZLIB macro "compress". 

Credit:
Zenju 
libssh2/libssh2,libssh2/libssh2,libssh2/libssh2,libssh2/libssh2