doc: fix the order of arguments to calloc()
doc: fix the order of arguments to calloc()

PR-URL: https://github.com/libuv/libuv/pull/2835
Reviewed-By: Colin Ihrig <838f779c91673db29b8572ea3f54d191d3878ae2@gmail.com>

unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso,unknownbrackets/maxcso