restore rsyncable docs to man page

[debian/gzip] / gzip.1

diff --git a/gzip.1 b/gzip.1
index 71e097cefc04feb33d3dc44c59bf7f8058e1cf73..faee860f266e2cf96c06d44988b64caf7c1dfe00 100644 (file)
--- a/gzip.1
+++ b/gzip.1
@@ -5,6 +5,7 @@ gzip, gunzip, zcat \- compress or expand files
 .ll +8
 .B gzip
 .RB [ " \-acdfhklLnNrtvV19 " ]
+.RB [ --rsyncable ]
 .RB [ \-S\ suffix ]
 [
 .I "name \&..."
@@ -287,6 +288,16 @@ will descend into the directory and compress all the files it finds there
 .I gunzip
 ).
 .TP
+.B --rsyncable
+While compressing, synchronize the output occasionally based on the input.
+This increases size by less than 1 percent most cases, but means that the
+.BR rsync (1)
+program can take advantage of similarities in the uncompressed input
+when syncronizing two files compressed with this flag.
+.I gunzip
+cannot tell the difference between a compressed file created with this option,
+and one created without it.
+.TP
 .B \-S .suf   --suffix .suf
 When compressing, use suffix .suf instead of .gz.
 Any non-empty suffix can be given, but suffixes