hints updates

move out-of-date hints files to the outdated folder.

rename the hints files, and hints/include files that are currently
named *.2020 to *.370 (next release number).

sys/libnh/README.md

@@ -12,14 +12,14 @@ Generally the build is the same as the unix build:
 
 [Edit Oct 4, 2020: Use the existing Makefile and hints, hints/include system for cross-compiles]
 1. `cd sys/unix`
-2. `./setup.sh hints/macOS.2020`
+2. `./setup.sh hints/macOS.370`
 3. `cd ../..`
 4. For `libnethack.a`: `make WANT_LIBNH=1 all`
 5. For `nethack.js`: `make CROSS_TO_WASM=1 all`
 
 [Original text was:]
 1. `cd sys/lib`
-2. For `libnethack.a`: `./setup.sh hints/macOS.2020`; for `nethack.js`: `./setup.sh hints/wasm`
+2. For `libnethack.a`: `./setup.sh hints/macOS.370`; for `nethack.js`: `./setup.sh hints/wasm`
 3. `cd ../..`
 4. `make`
 

sys/libnh/test/run.sh

@@ -6,7 +6,7 @@ if [ x$1 == "xlib" ]; then
         make spotless
     fi
     cd sys/unix
-    ./setup.sh hints/macOS.2020
+    ./setup.sh hints/macOS.370
     cd ../..
     make WANT_LIBNH=1
 fi
@@ -25,7 +25,7 @@ if [ x$1 == "xwasm" ]; then
         make spotless
     fi
     cd sys/unix
-    ./setup.sh hints/macOS.2020
+    ./setup.sh hints/macOS.370
     cd ../..
     make CROSS_TO_WASM=1
 fi
@@ -38,7 +38,7 @@ if [ x$1 == "xbin" ]; then
     echo Doing bin...
     make spotless
     cd sys/unix
-    ./setup.sh hints/macOS.2020
+    ./setup.sh hints/macOS.370
     cd ../..
     make
 fi