docs: function isGitInstalled() {
      var result = exec( "git --version", true );
      try {
          if ( !result || result.indexOf( "git" ) < 0 || result.indexOf( "version" ) < 0 ) {
              console.log( Fatal.format(
                  "`git` is required by the ToloFrameWork!\n" +
                  "Please install it:" ) );
              console.log( "\n> " + "sudo apt-get install git".yellow.italic );
              return false;
          }
          return true;
      } catch ( ex ) {
          fatal( "Fatal error in function `result`!\n" + JSON.stringify( ex, null, '  ' ) );
      }
  }