Fix invalid escape sequence causing JSON validation failure

Change-Id: I7f7cef9bb30ce19f21e0c8d308bfdf0a04427630
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
Issue-ID: INT-1437
diff --git a/test/postman/14_Vnf_package_onboard.postman_collection.json b/test/postman/14_Vnf_package_onboard.postman_collection.json
index ef7fe73..cec430a 100644
--- a/test/postman/14_Vnf_package_onboard.postman_collection.json
+++ b/test/postman/14_Vnf_package_onboard.postman_collection.json
@@ -175,11 +175,11 @@
 								"package_content"
 							]
 						},
-						"description": "msb_download:\nget The acquired data needs to be written to the CSAR file, and there is no write operation here; \ nthe vnf package tested here does not exist.\n"
+						"description": "msb_download:\nget The acquired data needs to be written to the CSAR file, and there is no write operation here; \nthe vnf package tested here does not exist.\n"
 					},
 					"response": []
 				}
 			]
 		}
 	]
-}
\ No newline at end of file
+}