Change references of 'alt code' to 'alternate code'

This was done by:

    sgit -e 's/alt code/alternate code/g' . ; git co tmp/OLD_manifest

as well as updating the tmp/manifest.numbers spreadsheet and exporting
to the CSV file (though that would not strictly be necessary).

The way this works means that the update manifest script does not need
to be run as it sgit(1) touched the .entry.json files (any that needed
to be updated) and so would any index.html files. An example for both
.entry.json and index.html files being modified due to manifest is
2012/kang.

Numerous Makefiles were updated, any try scripts that had 'alt code'
instead of 'alternate code' and README.md/index.html files (unrelated to
the manifest as 'alt code' was used in other places too) and obviously
the manifest.numbers spreadsheet.

However to be safe I will do a run of the manifest script in a bit even
though it should not be necessary. If no commits are made it means all
is good and if any commits are made for the manifest it means that I
did not think of something (or else I made another change after this).

1992/albert/try.alt.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 #
-# try.alt.sh - demonstrate IOCCC entry 1992/albert alt code
+# try.alt.sh - demonstrate IOCCC entry 1992/albert alternate code
 #
 
 # make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it

1992/buzzard.2/try.alt.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 #
-# try.alt.sh - demonstrate IOCCC entry 1992/buzzard.2 alt code
+# try.alt.sh - demonstrate IOCCC entry 1992/buzzard.2 alternate code
 #
 
 # make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it

1992/kivinen/Makefile

@@ -142,7 +142,7 @@ ${PROG}: ${PROG}.c
 alt: data ${ALT_TARGET}
 	@${TRUE}
 
-# Variable to control amount of time to sleep between writes for alt code.
+# Variable to control amount of time to sleep between writes for alternate code.
 #
 SLEEP= 20000
 

1992/westley/try.sh

@@ -5,7 +5,7 @@
 # This script runs westley on a variety of locations to show different cities in
 # the world, based on the author's remarks and the judges' remarks.
 #
-# This script will first try compiling the code and alt code (alt = US only with
+# This script will first try compiling the code and alternate code (alt = US only with
 # higher resolution, based on the author's remarks) and then if all is OK it
 # will continue.
 #
@@ -26,7 +26,7 @@
 # will try chmod +x on them and then try again. Otherwise it'll just use westley
 # and westley.alt.
 #
-# This script knows which version, the entry or alt code, to use based on what
+# This script knows which version, the entry or alternate code, to use based on what
 # city is being shown (based on the author's remarks).
 #
 # Usage: ./try.sh