resolved sonar issues

Author: ragavareddychalapala

src/LCT.SW360PackageCreator/AlpinePackageDownloader.cs

@@ -143,7 +143,7 @@ private static void ApplyPatchFilesToSourceCode(string downloadPath, string sour
                     directory.Delete(true);
 
                 }
-                catch (Exception ex)
+                catch (IOException ex)
                 {
                     Logger.Debug(ex.ToString());
                 }

src/LCT.SW360PackageCreator/URLHelper.cs

@@ -268,8 +268,7 @@ private static void CloneSource(string localPathforSourceRepo, string alpineDist
                     p.StartInfo.WorkingDirectory = localPathforSourceRepo;
 
                     p.Start();
-                    p.WaitForExit();
-                    p.WaitForExit();
+                    p.WaitForExit();                  
 
                 }
             }