Update manpages and auto-completion

doc/man/restic-diff.1

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+.TH "restic backup" "1" "Jan 2017" "generated by `restic generate`" "" 
+.nh
+.ad l
+
+
+.SH NAME
+.PP
+restic\-diff \- Show differences between two snapshots
+
+
+.SH SYNOPSIS
+.PP
+\fBrestic diff snapshot\-ID snapshot\-ID [flags]\fP
+
+
+.SH DESCRIPTION
+.PP
+The "diff" command shows differences from the first to the second snapshot. The
+first characters in each line display what has happened to a particular file or
+directory:
+.IP \(bu 2
+The item was added
+.IP \(bu 2
+The item was removed
+U  The metadata (access mode, timestamps, ...) for the item was updated
+M  The file's content was modified
+T  The type was changed, e.g. a file was made a symlink
+
+
+.SH OPTIONS
+.PP
+\fB\-h\fP, \fB\-\-help\fP[=false]
+    help for diff
+
+.PP
+\fB\-\-metadata\fP[=false]
+    print changes in metadata
+
+
+.SH OPTIONS INHERITED FROM PARENT COMMANDS
+.PP
+\fB\-\-cacert\fP=[]
+    path to load root certificates from (default: use system certificates)
+
+.PP
+\fB\-\-cache\-dir\fP=""
+    set the cache directory
+
+.PP
+\fB\-\-cleanup\-cache\fP[=false]
+    auto remove old cache directories
+
+.PP
+\fB\-\-json\fP[=false]
+    set output mode to JSON for commands that support it
+
+.PP
+\fB\-\-limit\-download\fP=0
+    limits downloads to a maximum rate in KiB/s. (default: unlimited)
+
+.PP
+\fB\-\-limit\-upload\fP=0
+    limits uploads to a maximum rate in KiB/s. (default: unlimited)
+
+.PP
+\fB\-\-no\-cache\fP[=false]
+    do not use a local cache
+
+.PP
+\fB\-\-no\-lock\fP[=false]
+    do not lock the repo, this allows some operations on read\-only repos
+
+.PP
+\fB\-o\fP, \fB\-\-option\fP=[]
+    set extended option (\fB\fCkey=value\fR, can be specified multiple times)
+
+.PP
+\fB\-p\fP, \fB\-\-password\-file\fP=""
+    read the repository password from a file (default: $RESTIC\_PASSWORD\_FILE)
+
+.PP
+\fB\-q\fP, \fB\-\-quiet\fP[=false]
+    do not output comprehensive progress report
+
+.PP
+\fB\-r\fP, \fB\-\-repo\fP=""
+    repository to backup to or restore from (default: $RESTIC\_REPOSITORY)
+
+
+.SH SEE ALSO
+.PP
+\fBrestic(1)\fP