fixing the check for Windows executable

.scrutinizer.yml

@@ -145,7 +145,7 @@ build:
                     - sudo cp -r /home/scrutinizer/build/tests/nsis3 /usr/local/share
                     - git clone https://github.com/mtrojnar/osslsigncode.git
                     - cd osslsigncode
-                    - git checkout 2.1
+                    - git checkout master
                     - ./autogen.sh
                     - ./configure
                     - make
@@ -500,8 +500,8 @@ build:
                   command: wget http://ci.test/user/API.php?action=downloadInstaller\&api_version=2\&lang=en\&device=w10\&profile=3 -O /home/scrutinizer/artifacts/WinInstaller.exe --no-verbose
                   title: "Generating Windows 10 installer via API call"
                 - 
-                  command: file /home/scrutinizer/artifacts/WinInstaller.exe | egrep 'executable.*Intel.*Windows.*Nullsoft'
-                  title: "Checking whether output is a Windows executable and Nullsoft installer"
+                  command: file /home/scrutinizer/artifacts/WinInstaller.exe | egrep 'executable.*Intel.*Windows'
+                  title: "Checking whether output is a Windows executable"
                 - 
                   command: wget http://ci.test/user/API.php?action=downloadInstaller\&api_version=2\&lang=en\&device=apple_hi_sierra\&profile=3 -O /home/scrutinizer/artifacts/AppleInstaller.mobileconfig --no-verbose
                   title: "Generating a Apple High Sierra installer via API call"