Move environ(5) to environ(7) following upstream

Author: hosiet

ChangeLog

@@ -3,6 +3,7 @@
 * CMakeLists.txt: Migrate build system to CMake.
 * Bump version string to 1.6.4.0.
 * Remove old automake/autotools build system.
+* environ(5): Move to environ(7) following upstream.
 
 2022-12-08 Boyuan Yang <073plan@gmail.com>
 

src/man5/environ.5 renamed to src/man7/environ.7

@@ -28,12 +28,9 @@
 .\" Modified Mon Oct 21 17:47:19 1996 by Eric S. Raymond (esr@thyrsus.com)
 .\" Modified Wed Aug 27 20:28:58 1997 by Nicol醩 Lichtmaier 
 .\" Modified Mon Sep 21 00:00:26 1998 by Andries Brouwer (aeb@cwi.nl)
-.TH ENVIRON(5) Linux Programmer's Manual ENVIRON(5)
-
-
+.TH ENVIRON 7 1998-09-21 "Linux Programmer's Manual"
 .SH NAME
-environ - 用户环境(变量)
-
+environ \- 用户环境(变量)
 .SH SYNOPSIS 总览
 .ad l
 .nf