don't export with "$", quote paths (https://trac.osgeo.org/grass/ticket/1981)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@56458 15284696-431f-4ddb-bdfa-cd5b030d7da7

mswindows/osgeo4w/grass.tmpl

@@ -1,15 +1,15 @@
 #!/bin/sh
 
-OSGEO4W_ROOT_MSYS=@OSGEO4W_ROOT_MSYS@
-GISBASE=$OSGEO4W_ROOT_MSYS/apps/grass/grass-@VERSION@
-GRASS_SH=$OSGEO4W_ROOT_MSYS/apps/msys/bin/sh.exe
-GRASS_PYTHON=$OSGEO4W_ROOT_MSYS/bin/python.exe
-PYTHONHOME=$OSGEO4W_ROOT_MSYS/apps/Python27
-GRASS_PROJSHARE=$OSGEO4W_ROOT_MSYS/share/proj
-PATH=$OSGEO4W_ROOT_MSYS/apps/grass/grass-@VERSION@/bin:$PATH
+OSGEO4W_ROOT_MSYS="@OSGEO4W_ROOT_MSYS@"
+GISBASE="$OSGEO4W_ROOT_MSYS/apps/grass/grass-@VERSION@"
+GRASS_SH="$OSGEO4W_ROOT_MSYS/apps/msys/bin/sh.exe"
+GRASS_PYTHON="$OSGEO4W_ROOT_MSYS/bin/python.exe"
+PYTHONHOME="$OSGEO4W_ROOT_MSYS/apps/Python27"
+GRASS_PROJSHARE="$OSGEO4W_ROOT_MSYS/share/proj"
+PATH="$OSGEO4W_ROOT_MSYS/apps/grass/grass-@VERSION@/bin:$PATH"
 
-export $OSGEO4W_ROOT_MSYS $GISBASE $GRASS_SH $GRASS_PYTHON $PYTHONHOME $GRASS_PROJSHARE
-export $PATH
+export OSGEO4W_ROOT_MSYS GISBASE GRASS_SH GRASS_PYTHON PYTHONHOME GRASS_PROJSHARE
+export PATH
 
 "$GRASS_PYTHON" "$GISBASE/etc/grass@POSTFIX@.py" "$@"