Update functions.md

Add missing linefeed as requested by https://github.com/prometheus/prometheus/pull/11404#discussion_r1266625301 Signed-off-by: Guillaume Berche <guillaume.berche@orange.com>
2023-07-19 08:27:15 +02:00 · 2023-07-19 08:27:15 +02:00 · f5fb37dbab
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@ -304,6 +304,7 @@ This second example has the same effect than the first example, and illustrates
 ```
 label_replace(up{job="api-server",service="a:c"}, "foo", "$name", "service", "(?P<name>.*):(?P<version>.*)")
 ```
+
 ## `ln()`

 `ln(v instant-vector)` calculates the natural logarithm for all elements in `v`.