bug#22413: Inconsistency in GZIP documentation of diagnostic output vs. manpage

[Jason Leschnik]

I noticed a minor inconsistency between the diagnostic output of gzip(1)
and what is documented in the manpage for the condition where gzip believes
the file has already been compressed "already has .gz suffix".

# Occurs in
----------------
GZIP Version: 1.6 (Compiled source from GNU mirror)
GZIP Version: 1.5 (Installed Binary on Debian 7.8)

# Reproduce
-----------------
touch example.gz && gzip example.gz

Compare this output to that of gzip(1) manpage corresponding to the error.

# Problem
--------------
Expected: gzip: example.gz already has .gz suffix -- no change
Got:          gzip: example.gz already has .gz suffix -- unchanged

# Files identified
----------------------
./gzip.doc
./gzip.1

Regards,
Jason.