git: Clean up a few math related manualpages.

[Sascha Wildner]

commit ed56e68486bea80a05f7bd65506ad88989d9bf9a
Author: Sascha Wildner <saw at online.de>
Date:   Tue May 28 21:17:34 2019 +0200

    Clean up a few math related manualpages.
    
    * In frexp.3, change the library to libc, because it is part of libc,
      not libm (anymore).
    
    * In fpclassify.3 and signbit.3, remove the LIBRARY section, because
      all these are macros from <math.h>.

Summary of changes:
 lib/libc/gen/frexp.3      | 4 ++--
 lib/libm/man/fpclassify.3 | 4 +---
 lib/libm/man/signbit.3    | 4 +---
 3 files changed, 4 insertions(+), 8 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/ed56e68486bea80a05f7bd65506ad88989d9bf9a


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