winGRASS: use cmd instead of sh

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@61975 15284696-431f-4ddb-bdfa-cd5b030d7da7

mswindows/osgeo4w/env.bat.tmpl

@@ -1,9 +1,9 @@
-rem
-rem Environmental variables for GRASS OSGeo4W installer
-rem
+REM
+REM Environmental variables for GRASS OSGeo4W installer
+REM
 
 set GISBASE=%OSGEO4W_ROOT%\apps\grass\grass-@VERSION@
-set GRASS_SH=%OSGEO4W_ROOT%\apps\msys\bin\sh.exe
+REM set GRASS_SH=%OSGEO4W_ROOT%\apps\msys\bin\sh.exe
 
 set GRASS_HTML_BROWSER=explorer