Merge commit 'f96384a3b596f9bc0a3a035970b09b2c601f0ccb'

docs/content/en/functions/errorf.md

@@ -1,19 +1,13 @@
 ---
 title: errorf and warnf
 description: Log ERROR or WARNING from the templates.
-date: 2017-09-30
-publishdate: 2017-09-30
-lastmod: 2017-09-30
 categories: [functions]
 menu:
   docs:
-    parent: "functions"
+    parent: functions
 keywords: [strings, log, error]
 signature: ["errorf FORMAT INPUT"]
-workson: []
-hugoversion:
 relatedfuncs: [printf]
-deprecated: false
 ---
 
 `errorf` or `warnf` will evaluate a format string, then output the result to the ERROR or WARNING log (and only once per error message to avoid flooding the log).
@@ -22,11 +16,11 @@ Any ERROR will also cause the build to fail (the `hugo` command will `exit -1`).
 
 Both functions return an empty string, so the messages are only printed to the console.
 
-```
+```go-html-template
 {{ errorf "Failed to handle page %q" .Path }}
 ```
 
-```
+```go-html-template
 {{ warnf "You should update the shortcodes in %q" .Path }}
 ```
 
@@ -38,7 +32,7 @@ Sometimes it may make sense to let the user suppress an ERROR and make the build
 
 You can do this by using the `erroridf` function. This functions takes an error ID as the first argument.
 
-```
+```go-html-template
 {{ erroridf "my-custom-error" "You should consider fixing this." }}
 ```