Use multi catch

Given the treatment for both exceptions is the same, do not duplicate
catch blocks.

Change-Id: Id7cfd3092305f58558894dedb681490eca1a8089

src/main/java/com/googlesource/gerrit/plugins/importer/HttpSession.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/importer/HttpSession.java b/src/main/java/com/googlesource/gerrit/plugins/importer/HttpSession.java
index 531d176..af7af86 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/importer/HttpSession.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/importer/HttpSession.java
@@ -67,9 +67,7 @@
             new TrustManager[] {new DummyX509TrustManager()};
         context = SSLContext.getInstance("TLS");
         context.init(null, trustAllCerts, null);
-      } catch (KeyManagementException e) {
-        throw new IOException(e.getMessage());
-      } catch (NoSuchAlgorithmException e) {
+      } catch (KeyManagementException | NoSuchAlgorithmException e) {
         throw new IOException(e.getMessage());
       }