add compatibility flags for a bunch of scripts (part 4)

sh/sortip

@@ -1,8 +1,8 @@
 #!/usr/bin/sh
-# compat: +ash +bash +dash +zsh
+# compat: +ash +bash +dash +hush +ksh +mksh +oksh +osh +posh +yash +zsh
 
 sortip() { ### @- sort lines numerically by IPv4 segments.
-    sort -t . -k 1,1n -k 2,2n -k 3,3n -k 4,4n "$@"
+    LC_ALL=C sort -t . -k 1,1n -k 2,2n -k 3,3n -k 4,4n "$@"
 }
 
 [ -n "${preload+-}" ] || sortip "$@"

sh/subdue

@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-# compat: +ash +bash +dash +zsh
+# compat: +ash +bash +dash +hush -ksh +mksh -oksh +osh +posh +yash +zsh
 
 __subdue() { ### @subdue
     ### reconfigure your terminal's color scheme using a preset for [recolor.](#recolor)

sh/sum

@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-# compat: +ash +bash +dash +zsh
+# compat: +ash +bash +dash +hush -ksh +mksh +oksh +osh +posh +yash +zsh
 
 sum() { ### @-
     ### compute the summation of its arguments without forking processes.

sh/sv

@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-# compat: +ash +bash +dash +zsh YES_BB_AWK
+# compat: +ash +bash +dash +hush +ksh +mksh +oksh +osh +posh +yash +zsh YES_BB_AWK
 
 sv() { ### @-
     ### collect the lastmost value of every key.

sh/trash

@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-# compat: +ash +bash +dash +zsh
+# compat: +ash +bash +dash +hush +ksh +mksh +oksh +osh +posh +yash +zsh
 
 trash() { ### @-
     ### output a given number of bytes from `/dev/random`.

sh/trunc

@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-# compat: +ash +bash +dash +zsh YES_BB_AWK
+# compat: +ash +bash +dash +hush +ksh +mksh +oksh +osh +posh +yash +zsh YES_BB_AWK
 
 trunc() { ### @-
     ### truncate text to fit within your terminal using the unicode character `…`.
@@ -12,8 +12,8 @@ trunc() { ### @-
     ### ```
 
     [ $# -le 1 ] || { printf "%s\n" "$0: too many arguments" >&2; return 1; }
-    COLUMNS=${COLUMNS:-$(tput cols)}
-    awk -vL=${1:-$COLUMNS} '{e=length()>L?"…":"";print substr($0,0,L-(e?1:0)) e}'
+    COLUMNS="${COLUMNS:-"$(tput cols)"}"
+    awk -vL="${1:-$COLUMNS}" '{e=length()>L?"…":"";print substr($0,0,L-(e?1:0)) e}'
 }
 
 [ -n "${preload+-}" ] || trunc "$@"

sh/unarchive

@@ -1,5 +1,5 @@
 #!/usr/bin/env zsh
-# compat: -ash -bash -dash +zsh
+# compat: -ash -bash -dash -hush -ksh -mksh -oksh -osh -posh -yash +zsh
 
 unarchive() { ### @- extract the contents of an archive file in one of many formats.
     ### borrowed from [prezto.](https://github.com/sorin-ionescu/prezto)

sh/unwrap

@@ -1,8 +1,8 @@
 #!/usr/bin/env sh
-# compat: +ash +bash +dash +zsh
+# compat: +ash +bash +dash +hush +ksh +mksh +oksh +osh +posh +yash +zsh
 
 unwrap() { ### @- join paragraphs into one line each.
-    awk '\''BEGIN{RS="\n\n";FS="\n"}{for(i=1;i<=NF;i++)printf "%s ",$i;print "\n"}'\'
+    awk 'BEGIN{RS="\n\n";FS="\n"}{for(i=1;i<=NF;i++)printf "%s ",$i;print "\n"}'
 }
 
 [ -n "${preload+-}" ] || unwrap "$@"

sh/v_domap

@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-# compat: +ash +bash +dash +zsh
+# compat: +ash +bash +dash -hush -ksh +mksh -oksh +osh +posh +yash +zsh
 
 v_domap() {
     argc $# -eq 1 "$0" || return

sh/v_lower

@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-# compat: +ash +bash +dash +zsh
+# compat: +ash +bash +dash -hush -ksh +mksh -oksh +osh +posh +yash +zsh
 
 v_lower() { ### @- transform the contents of a variable to lowercase.
     argc $# -eq 1 "$0" || return

sh/v_upper

@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-# compat: +ash +bash +dash +zsh
+# compat: +ash +bash +dash -hush -ksh +mksh -oksh +osh +posh +yash +zsh
 
 v_upper() { ### @- transform the contents of a variable to uppercase.
     argc $# -eq 1 "$0" || return

sh/wat

@@ -1,5 +1,5 @@
 #!/usr/bin/env zsh
-# compat: -ash -bash -dash +zsh
+# compat: -ash -bash -dash -hush -ksh -mksh -oksh -osh -posh -yash +zsh
 
 # wat - a better and recursive which/whence
 # via: https://leahneukirchen.org/dotfiles/tools.html

sh/xxp

@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-# compat: +ash +bash +dash +zsh
+# compat: +ash +bash +dash +hush +ksh +mksh +oksh +osh +posh +yash +zsh
 
 xxp() { ### @-
     ### act like `xxd -p`, but nicely formatted.