Rename WindowsInstaller_Silent_InstallProduct_MacroMethod.yar.txt to WindowsInstaller_Silent_InstallProduct_MacroMethod.yar

yara/WindowsInstaller_Silent_InstallProduct_MacroMethod.yar

@@ -30,4 +30,4 @@ condition:
 
         $doc_header at 0 and all of ($s*)
 
-}
+}