Finish up cols(1)

README

@@ -18,7 +18,7 @@ The following tools are implemented ('*' == finished, '#' == UTF-8 support,
 =* chroot          non-posix                       none
 =* cksum           yes                             none
    cmp             yes                             none
-   cols            non-posix                       none
+#* cols            non-posix                       none
 =* comm            yes                             none
 =  cp              no                              -H, (-i), -L
 =* cron            non-posix                       none

cols.1

@@ -1,4 +1,4 @@
-.Dd December 8, 2014
+.Dd February 1, 2015
 .Dt COLS 1
 .Os sbase
 .Sh NAME
@@ -6,34 +6,36 @@
 .Nd columnize output
 .Sh SYNOPSIS
 .Nm
-.Op Fl c Ar chars
+.Op Fl c Ar num
 .Op Ar file ...
 .Sh DESCRIPTION
 .Nm
-reads each file in sequence and writes them to stdout, in as many vertical
+reads each
+.Ar file
+in sequence and writes them to stdout, in as many vertical
 columns as will fit in
-.Ar chars
+.Ar num
 character columns. If no
 .Ar file
 is given,
 .Nm
 reads from stdin.
 .Sh OPTIONS
-.Bl -tag -width xxxxxxxx
+.Bl -tag -width Ds
 .It Fl c Ar chars
-Specifies the maximum number of character columns to use
+Set the maximum number of character columns to use
 (unless the input contains lines longer than
-.Ar chars
+.Ar num
 characters). By default cols tries to figure out the width of the output
-device, if that fails it defaults to 65 chars.
+device. If that fails, it defaults to 65 chars.
 .El
 .Sh HISTORY
 .Nm
-is similar to the mc(1) command on Plan 9. It was renamed to
+is similar to mc(1) in Plan 9. It was renamed to
 .Nm
 to avoid the name collision with the popular file manager
 Midnight Commander.
-.Sh BUGS
+.Sh CAVEATS
 This implementation of
 .Nm
 assumes that each UTF-8 code point occupies one character cell,

cols.c

@@ -58,8 +58,8 @@ main(int argc, char *argv[])
 	for (l = 0; l < b.nlines; ++l) {
 		len = utflen(b.lines[l]);
 		bytes = strlen(b.lines[l]);
-		if (len > 0 && b.lines[l][bytes-1] == '\n') {
-			b.lines[l][bytes-1] = '\0';
+		if (len > 0 && b.lines[l][bytes - 1] == '\n') {
+			b.lines[l][bytes - 1] = '\0';
 			--len;
 		}
 		if (len > maxlen)