Add period and newline

Author: rferrese

package.json

@@ -470,7 +470,7 @@
         "arduino.clearOutputOnBuild": {
           "type": "boolean",
           "default": false,
-          "description": "Clear the output logs before uploading or verifying"
+          "description": "Clear the output logs before uploading or verifying."
         },
         "arduino.openPDEFiletype": {
           "type": "boolean",
@@ -592,4 +592,4 @@
     "winreg": "^1.2.3",
     "winston": "^2.3.1"
   }
-}
+}