Add malloc logging tool

STATIC_YOINK("enable_memory_log");

tool/net/help.txt

@@ -236,12 +236,6 @@ USAGE
       $ file redbean.com
       redbean.com: ELF 64-bit LSB executable
 
-  redbean contains software licensed ISC, MIT, BSD-2, BSD-3, zlib
-  which makes it a permissively licensed gift to anyone who might
-  find it useful. The transitive closure of legalese can be found
-  inside the binary. redbean also respects your privacy and won't
-  phone home because your computer is its home.
-
 ────────────────────────────────────────────────────────────────────────────────
 
 SECURITY
@@ -1088,7 +1082,7 @@ FUNCTIONS
   ProgramPrivateKey(pem:str)
           Same as the -K flag if called from .init.lua, e.g.
           ProgramPrivateKey(LoadAsset("/.sign.key")) for zip loading or
-          ProgramPrivateKey(Slurp("/etc/letsencrypt/fullchain.pem")) for
+          ProgramPrivateKey(Slurp("/etc/letsencrypt/privkey.pem")) for
           local file system only.
 
   ProgramRedirect(code:int,src:str,location:str)
@@ -4148,6 +4142,19 @@ UNIX MODULE
     reflects the value chosen by the underlying operating system.
 
 
+────────────────────────────────────────────────────────────────────────────────
+
+LEGAL
+
+  redbean contains software licensed ISC, MIT, BSD-2, BSD-3, zlib
+  which makes it a permissively licensed gift to anyone who might
+  find it useful. The transitive closure of legalese can be found
+  inside the binary structure, because notice licenses require we
+  distribute the license along with any software that uses it. By
+  putting them in the binary, compliance in automated and no need
+  for further action on the part of the user who is distributing.
+
+
 ────────────────────────────────────────────────────────────────────────────────
 
 SEE ALSO