docs: clarify KiB vs. KB in man pages

Update the man pages of blkid, wipefs, fallocate, fstrim, losetup
and hexdump to clarify the suffixes for the numerical values of the
offset and size/length arguments regarding KiB=1024 vs KB=1000.
Also mention the ZiB/YiB and ZB/YB suffixes supported by strtosize().

Signed-off-by: Bernhard Voelker <mail@bernhard-voelker.de>

misc-utils/blkid.8

@@ -69,9 +69,10 @@ has two main forms of operation: either searching for a device with a
 specific NAME=value pair, or displaying NAME=value pairs for one or
 more specified devices.
 .SH OPTIONS
-The \fIsize\fR and \fIoffset\fR arguments may be followed by binary (2^N) 
-suffixes KiB, MiB, GiB, TiB, PiB and EiB (the "iB" is optional, e.g. "K" has the
-same meaning as "KiB") or decimal (10^N) suffixes KB, MB, GB, PB and EB.
+The \fIsize\fR and \fIoffset\fR arguments may be followed by the multiplicative
+suffixes KiB=1024, MiB=1024*1024, and so on for GiB, TiB, PiB, EiB, ZiB and YiB
+(the "iB" is optional, e.g. "K" has the same meaning as "KiB") or the suffixes
+KB=1000, MB=1000*1000, and so on for GB, PB, EB, ZB and YB.
 .TP
 .BI \-c " cachefile"
 Read from

misc-utils/wipefs.8

@@ -47,9 +47,10 @@ Specify the location (in bytes) of the signature which should be erased from the
 device.  The \fIoffset\fR number may include a "0x" prefix; then the number will be
 interpreted as a hex value.  It is possible to specify multiple \fB-o\fR options.
 
-The \fIoffset\fR argument may be followed by binary (2^N) suffixes KiB, MiB,
-GiB, TiB, PiB and EiB (the "iB" is optional, e.g. "K" has the same meaning as
-"KiB") or decimal (10^N) suffixes KB, MB, GB, PB and EB.
+The \fIoffset\fR argument may be followed by the multiplicative
+suffixes KiB=1024, MiB=1024*1024, and so on for GiB, TiB, PiB, EiB, ZiB and YiB
+(the "iB" is optional, e.g. "K" has the same meaning as "KiB") or the suffixes
+KB=1000, MB=1000*1000, and so on for GB, PB, EB, ZB and YB.
 .IP "\fB\-p, \-\-parsable\fP"
 Print out in parsable instead of printable format.  Encode all potentially unsafe
 characters of a string to the corresponding hex value prefixed by '\\x'.

sys-utils/fallocate.1

@@ -26,9 +26,10 @@ The exit code returned by
 is 0 on success and 1 on failure.
 .PP
 .SH OPTIONS
-The \fIlength\fR and \fIoffset\fR arguments may be followed by binary (2^N)
-suffixes KiB, MiB, GiB, TiB, PiB and EiB (the "iB" is optional, e.g. "K" has the
-same meaning as "KiB") or decimal (10^N) suffixes KB, MB, GB, PB and EB.
+The \fIlength\fR and \fIoffset\fR arguments may be followed by the multiplicative
+suffixes KiB=1024, MiB=1024*1024, and so on for GiB, TiB, PiB, EiB, ZiB and YiB
+(the "iB" is optional, e.g. "K" has the same meaning as "KiB") or the suffixes
+KB=1000, MB=1000*1000, and so on for GB, PB, EB, ZB and YB.
 .IP "\fB\-n, \-\-keep-size\fP"
 Do not modify the apparent length of the file.  This may effectively allocate
 blocks past EOF, which can be removed with a truncate.

sys-utils/fstrim.8

@@ -31,9 +31,10 @@ is mounted.
 
 .SH OPTIONS
 The \fIoffset\fR, \fIlength\fR, and \fIminimum-free-extent\fR arguments may be
-followed by binary (2^N) suffixes KiB, MiB, GiB, TiB, PiB and EiB (the "iB" is
-optional, e.g. "K" has the same meaning as "KiB") or decimal (10^N) suffixes
-KB, MB, GB, PB and EB.
+followed by the multiplicative suffixes KiB=1024, MiB=1024*1024, and so on for
+GiB, TiB, PiB, EiB, ZiB and YiB (the "iB" is optional, e.g. "K" has the same
+meaning as "KiB") or the suffixes KB=1000, MB=1000*1000, and so on for GB, PB,
+EB, ZB and YB.
 .IP "\fB\-h, \-\-help\fP"
 Print help and exit.
 .IP "\fB\-o, \-\-offset\fP \fIoffset\fP"

sys-utils/losetup.8

@@ -69,9 +69,10 @@ to detach loop devices and to query the status of a loop device. If only the
 device is shown.
 
 .SH OPTIONS
-The \fIsize\fR and \fIoffset\fR arguments may be followed by binary (2^N)
-suffixes KiB, MiB, GiB, TiB, PiB and EiB (the "iB" is optional, e.g. "K" has the
-same meaning as "KiB") or decimal (10^N) suffixes KB, MB, GB, PB and EB.
++The \fIsize\fR and \fIoffset\fR arguments may be followed by the multiplicative
++suffixes KiB=1024, MiB=1024*1024, and so on for GiB, TiB, PiB, EiB, ZiB and YiB
++(the "iB" is optional, e.g. "K" has the same meaning as "KiB") or the suffixes
++KB=1000, MB=1000*1000, and so on for GB, PB, EB, ZB and YB.
 
 .IP "\fB\-a, \-\-all\fP"
 show status of all loop devices. Note that not all information are accessible

text-utils/hexdump.1

@@ -44,9 +44,10 @@ utility is a filter which displays the specified files, or
 standard input if no files are specified, in a user-specified
 format.
 .SH OPTIONS
-The \fIlength\fR and \fIoffset\fR arguments may be followed by binary (2^N)
-suffixes KiB, MiB, GiB, TiB, PiB and EiB (the "iB" is optional, e.g. "K" has the
-same meaning as "KiB") or decimal (10^N) suffixes KB, MB, GB, PB and EB.
+The \fIlength\fR and \fIoffset\fR arguments may be followed by the multiplicative
+suffixes KiB=1024, MiB=1024*1024, and so on for GiB, TiB, PiB, EiB, ZiB and YiB
+(the "iB" is optional, e.g. "K" has the same meaning as "KiB") or the suffixes
+KB=1000, MB=1000*1000, and so on for GB, PB, EB, ZB and YB.
 .TP
 .B \-b
 \fIOne-byte octal display\fR.  Display the input offset in hexadecimal,