Fix install check for x64

packages/scribus.xml

@@ -2,7 +2,7 @@
 <packages>
     <package id="scribus"
              name="Scribus"
-             revision="7"
+             revision="8"
              reboot="false"
              priority="10">
 
@@ -13,7 +13,7 @@
 
         <depends package-id="ghostscript" />
 
-        <check type="uninstall" condition="exists" path="Scribus %PKG_VERSION%" />
+        <check type="uninstall" condition="versionequalto" path="Scribus.*" value="%PKG_VERSION%" />
  
         <install cmd='"%EXE_PATH%" /S /D=%INSTALL_PATH%' />
         <install cmd='%COMSPEC% /C del /f "%ALLUSERSPROFILE%\Bureau\Scribus %PKG_VERSION%.lnk"'>