Temporarily restore partial GH SCons#4717 original CHANGES.txt text.

Changes:
* Partially restore restore original GH SCons#4717 CHANGES.txt description
* Change MSVS to MSVC in RELEASE.txt
* Remove extraneous two blank lines introduced in common.py when variable moved

Author: jcbrill

CHANGES.txt

@@ -16,14 +16,13 @@ RELEASE  VERSION/DATE TO BE FILLED IN LATER
     - Whatever John Doe did.
 
   From Joseph Brill:
-    - MSVS: Fix a significant MSVC/MSVC tool initialization slowdown when
-      vcpkg has been installed and the PSModulePath is not initialized
-      or propagated from the user's shell environment. To resolve this
-      The default Windows Powershell 7 path is added before the default
-      Windows Powershell 5 path in the carefully constructed
-      environment in which the MSVC batch files are run.   The shell
-      environment variables and values for VCPKG_DISABLE_METRICS and
-      VCPKG_ROOT are added to the limited MSVC environment when defined.
+    - MSVC: The default Windows powershell 7 path is added before the
+      default Windows powershell 5 path in the limited environment in
+      which the MSVC batch files are run.  This appears to fix a runtime
+      issue in the windows runner environment when the embedded Visual
+      Studio vcpkg component initializes without a PSModulePath defined.
+      The shell environment variables and values for VCPKG_DISABLE_METRICS
+      and VCPKG_ROOT are added to the limited MSVC environment when defined.
       At present, the VCPKG_DISABLE_METRICS and VCPKG_ROOT variables and
       values are not propagated to the SCons environment after running
       the MSVC batch files.

RELEASE.txt

@@ -35,7 +35,7 @@ CHANGED/ENHANCED EXISTING FUNCTIONALITY
   one from PEP 308 introduced in Python 2.5 (2006). The idiom being
   replaced (using and/or) is regarded as error prone.
 
-- MSVS: The default Windows powershell 7 path is added before the default
+- MSVC: The default Windows powershell 7 path is added before the default
   Windows powershell 5 path in the limited environment in which the
   MSVC batch files are run.
 

SCons/Tool/MSCommon/common.py

@@ -402,8 +402,6 @@ def normalize_env(env, keys, force: bool=False):
     return normenv
 
 
-
-
 def get_output(vcbat, args=None, env=None, skip_sendtelemetry=False):
     """Parse the output of given bat file, with given args."""