Update xxhsum.1

Generate with the following commands:

rm cli/xxhsum.1
make man
man cli/xxhsum.1

cli/xxhsum.1

@@ -2,17 +2,30 @@
 .SH "NAME"
 \fBxxhsum\fR \- print or check xxHash non\-cryptographic checksums
 .SH "SYNOPSIS"
-\fBxxhsum [<OPTION>] \|\.\|\.\|\. [<FILE>] \|\.\|\.\|\.\fR \fBxxhsum \-b [<OPTION>] \|\.\|\.\|\.\fR
+\fBxxhsum\fR [\fIOPTION\fR]\|\.\|\.\|\. [\fIFILE\fR]\|\.\|\.\|\.
+.br
+\fBxxhsum \-b\fR [\fIOPTION\fR]\|\.\|\.\|\.
 .P
 \fBxxh32sum\fR is equivalent to \fBxxhsum \-H0\fR, \fBxxh64sum\fR is equivalent to \fBxxhsum \-H1\fR, \fBxxh128sum\fR is equivalent to \fBxxhsum \-H2\fR\.
 .SH "DESCRIPTION"
-Print or check xxHash (32, 64 or 128 bits) checksums\. When no \fIFILE\fR, read standard input, except if it's the console\. When \fIFILE\fR is \fB\-\fR, read standard input even if it's the console\.
+Print or check xxHash (32, 64 or 128 bits) checksums\.
+.br
+When no \fIFILE\fR, read standard input, except if it's the console\. When \fIFILE\fR is \fB\-\fR, read standard input even if it's the console\.
 .P
-\fBxxhsum\fR supports a command line syntax similar but not identical to md5sum(1)\. Differences are: \fBxxhsum\fR doesn't have text/binary mode switch (\fB\-b\fR, \fB\-t\fR); \fBxxhsum\fR always treats files as binary file; \fBxxhsum\fR has a hash selection switch (\fB\-H\fR);
+\fBxxhsum\fR supports a command line syntax similar but not identical to md5sum(1)\. Differences are:
+.IP "\[ci]" 4
+\fBxxhsum\fR doesn't have text mode switch (\fB\-t\fR)
+.IP "\[ci]" 4
+\fBxxhsum\fR doesn't have short binary mode switch (\fB\-b\fR)
+.IP "\[ci]" 4
+\fBxxhsum\fR always treats files as binary file
+.IP "\[ci]" 4
+\fBxxhsum\fR has a hash selection switch (\fB\-H\fR)
+.IP "" 0
 .P
 As xxHash is a fast non\-cryptographic checksum algorithm, \fBxxhsum\fR should not be used for security related purposes\.
 .P
-\fBxxhsum \-b\fR invokes benchmark mode\. See \fIOPTIONS\fR and \fIEXAMPLES\fR for details\.
+\fBxxhsum \-b\fR invokes benchmark mode\. See OPTIONS and EXAMPLES for details\.
 .SH "OPTIONS"
 .TP
 \fB\-V\fR, \fB\-\-version\fR
@@ -21,6 +34,9 @@ Displays xxhsum version and exits
 \fB\-H\fR\fIHASHTYPE\fR
 Hash selection\. \fIHASHTYPE\fR means \fB0\fR=XXH32, \fB1\fR=XXH64, \fB2\fR=XXH128, \fB3\fR=XXH3\. Note that \fB\-H3\fR triggers \fB\-\-tag\fR, which can't be skipped (this is to reduce risks of confusion with \fB\-H2\fR (\fBXXH64\fR))\. Alternatively, \fIHASHTYPE\fR \fB32\fR=XXH32, \fB64\fR=XXH64, \fB128\fR=XXH128\. Default value is \fB1\fR (XXH64)
 .TP
+\fB\-\-binary\fR
+Read in binary mode\.
+.TP
 \fB\-\-tag\fR
 Output in the BSD style\.
 .TP
@@ -29,8 +45,7 @@ Set output hexadecimal checksum value as little endian convention\. By default,
 .TP
 \fB\-h\fR, \fB\-\-help\fR
 Displays help and exits
-.P
-\fBThe following four options are useful only when verifying checksums (\fB\-c\fR)\fR
+.SS "The following options are useful only when verifying checksums (\-c):"
 .TP
 \fB\-c\fR, \fB\-\-check\fR \fIFILE\fR
 Read xxHash sums from \fIFILE\fR and check them
@@ -46,14 +61,10 @@ Don't output anything\. Status code shows success\.
 .TP
 \fB\-w\fR, \fB\-\-warn\fR
 Emit a warning message about each improperly formatted checksum line\.
-.TP
-\fB\-\-ignore\-missing\fR
-Don't fail or report status for missing files\.
-.P
-\fBThe following options are useful only benchmark purpose\fR
+.SS "The following options are useful only benchmark purpose:"
 .TP
 \fB\-b\fR
-Benchmark mode\. See \fIEXAMPLES\fR for details\.
+Benchmark mode\. See EXAMPLES for details\.
 .TP
 \fB\-b#\fR
 Specify ID of variant to be tested\. Multiple variants can be selected, separated by a ',' comma\.