Check help string consistency for standard metrics. about client_golang HOT 4 CLOSED

@beorn7 I started working on this (see the linked PR). Correct me if I'm wrong, here are the places in which help text is provided by the library

client_golang

• https://github.com/prometheus/client_golang/blob/master/prometheus/go_collector.go
• https://github.com/prometheus/client_golang/blob/master/prometheus/http.go
• https://github.com/prometheus/client_golang/blob/master/prometheus/process_collector.go

client_python

• https://github.com/prometheus/client_python/blob/master/prometheus_client/process_collector.py

client_java

• https://github.com/prometheus/client_java/blob/master/simpleclient_hotspot/src/main/java/io/prometheus/client/hotspot/StandardExports.java
• https://github.com/prometheus/client_java/blob/master/simpleclient_hotspot/src/main/java/io/prometheus/client/hotspot/MemoryPoolsExports.java
• https://github.com/prometheus/client_java/blob/master/simpleclient_hotspot/src/main/java/io/prometheus/client/hotspot/GarbageCollectorExports.java

from client_golang.

Looks good in general. Currently traveling and at Velocity, so in no shape to to pedantic checks.
Any increase in consistency will be a win.

from client_golang.

In Java it's only StandardExports, the rest are unique to java.

from client_golang.

Since the help strings in https://prometheus.io/docs/instrumenting/writing_clientlibs/ are now modeled after client_golang, we are in sync by definition.

from client_golang.