This commit covers the man pages for most of the ANSI library functions. A few others such as strtol.3 have to mention <sys/types.h> because they mix ANSI interfaces with less well designed extensions.
converted them into .Fn macros where appropriate. Also fixed up some minor formatting problems.
4.4. The code is almost identical to the 4.4 versions, but this organization should make it easier to merge new versions in the future.
