Fix exception alias syntax

fig/cli/main.py

@@ -38,18 +38,18 @@ def main():
     except KeyboardInterrupt:
         log.error("\nAborting.")
         exit(1)
-    except UserError, e:
+    except UserError as e:
         log.error(e.msg)
         exit(1)
-    except NoSuchService, e:
+    except NoSuchService as e:
         log.error(e.msg)
         exit(1)
-    except NoSuchCommand, e:
+    except NoSuchCommand as e:
         log.error("No such command: %s", e.command)
         log.error("")
         log.error("\n".join(parse_doc_section("commands:", getdoc(e.supercommand))))
         exit(1)
-    except APIError, e:
+    except APIError as e:
         log.error(e.explanation)
         exit(1)
 

fig/cli/socketclient.py

@@ -85,7 +85,7 @@ class SocketClient:
                     stream.flush()
                 else:
                     break
-        except Exception, e:
+        except Exception as e:
             log.debug(e)
 
     def send_ws(self, socket, stream):
@@ -101,7 +101,7 @@ class SocketClient:
                 else:
                     try:
                         socket.send(chunk)
-                    except Exception, e:
+                    except Exception as e:
                         if hasattr(e, 'errno') and e.errno == errno.EPIPE:
                             break
                         else: