Remove 'America' (A) from 'USA' :-)

This to make the country code consistent with mkiocccentry (and I guess
international standard country codes).

This affects many README.md files and (for one line) winners.csv.

2001/bellard/Makefile

@@ -38,7 +38,7 @@ include ../../var.mk
 
 # Common C compiler warnings to silence
 #
-CSILENCE= -Wno-bitwise-op-parentheses -Wno-error -Wno-implicit-function-declaration \
+CSILENCE= #-Wno-bitwise-op-parentheses -Wno-error -Wno-implicit-function-declaration \
 	-Wno-implicit-int -Wno-int-conversion -Wno-int-to-pointer-cast \
 	-Wno-parentheses -Wno-return-type
 

2001/coupard/README.md

@@ -5,7 +5,7 @@ Lineo, Inc.
 ATTN : Pierre-Philippe Coupard  
 390 South 400 West  
 Lindon, UT 84042  
-USA  
+US  
 
 ## To build:
 

2001/ctk/README.md

@@ -3,7 +3,7 @@
 Chris King  
 115 Foster Center Road  
 Foster, RI, 02825  
-USA  
+US  
 
 ## To build:
 

2001/dgbeards/README.md

@@ -4,7 +4,7 @@ Doug Beardsley
 Southern Adventist University  
 359 Davis Rd. NW  
 Cleveland, TN 37312  
-USA  
+US  
 
 ## To build:
 

2001/jason/README.md

@@ -3,7 +3,7 @@
     Jason Orendorff
     5 Buchanan St.
     Nashua, NH 03060
-    USA
+    US
 
     http://www.jorendorff.com/
 

2001/westley/README.md

@@ -4,7 +4,7 @@
     Firesign Theatre webmaster
     1906 James Ave
     St. Paul, MN  55105
-    USA
+    US
 
     http://www.westley.org
 

2001/williams/README.md

@@ -3,7 +3,7 @@
     John Williams
     941 E  25 S
     Lindon UT  84042
-    USA
+    US
 
 ## To build: