Stop using .com extension in monorepo

The WIN32 CreateProcess() function does not require an .exe or .com
suffix in order to spawn an executable. Now that we have Cosmo bash
we're no longer so dependent on the cmd.exe prompt.

tool/scripts/bf

@@ -1,4 +1,4 @@
 #!/bin/sh
-bing.com <"$1" |
-  fold.com |
+bing <"$1" |
+  fold |
   exec less

tool/scripts/explain-deps.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python.com
+#!/usr/bin/env python
 
 import os
 import re

tool/scripts/fix-third-party.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python.com
+#!/usr/bin/env python
 #
 # fix-third-party.py
 # normalizes third party codebases to cosmopolitan style

tool/scripts/get-deps.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python.com
+#!/usr/bin/env python
 #
 # OVERVIEW
 #

tool/scripts/grep

@@ -2,7 +2,7 @@
 exec grep                       \
      --exclude=TAGS             \
      --exclude=HTAGS            \
-     --exclude=*.com            \
+     --exclude=*.dbg            \
      --exclude-dir=o            \
      --exclude-dir=gcc          \
      --exclude-dir=.git         \

tool/scripts/man2txt

@@ -1,7 +1,7 @@
 #!/bin/sh
 
-ASCII2UTF8=$(command -v ascii2utf8.com 2>/dev/null) || {
-  ASCII2UTF8=$(ls -1 o/*/tool/viz/ascii2utf8.com | head -n1)
+ASCII2UTF8=$(command -v ascii2utf8 2>/dev/null) || {
+  ASCII2UTF8=$(ls -1 o/*/tool/viz/ascii2utf8 | head -n1)
 }
 
 for x; do

tool/scripts/pb

@@ -1,5 +1,5 @@
 #!/bin/sh
-exec python.com -c "
+exec python -c "
 # -*- coding: utf-8 -*-
 import sys
 from math import *

tool/scripts/pe

@@ -6,4 +6,4 @@ from math import *
 s = str($*)
 sys.stdout.write(s)
 " >/tmp/pe
-exec python.com /tmp/pe
+exec python /tmp/pe

tool/scripts/po

@@ -1,5 +1,5 @@
 #!/bin/sh
-exec python.com -c "
+exec python -c "
 import sys
 from math import *
 s = str(oct($*).replace('o',''))

tool/scripts/px

@@ -1,5 +1,5 @@
 #!/bin/sh
-exec python.com -c "
+exec python -c "
 # -*- coding: utf-8 -*-
 import sys
 from math import *