wine config docs: do not retrieve Environment/PATH key

docs/configure-wine.md

@@ -30,8 +30,7 @@ the HAWC2 executables in here:
 
 ```
 WINEDIRNAME=".wine32"
-WINEARCH=win32 WINEPREFIX=~/$WINEDIRNAME wine regedit /E tmp.reg "HKEY_CURRENT_USER\Environment"
-echo '"PATH"="c:\\bin"' >> ./tmp.reg
+printf 'REGEDIT4\n[HKEY_CURRENT_USER\Environment]\n"PATH"="c:\\bin"' >> ./tmp.reg
 WINEARCH=win32 WINEPREFIX=~/$WINEDIRNAME wine regedit ./tmp.reg
 rm ./tmp.reg
 ```