Further improve alt code of 2006/sloane

Formatting looks more like the original.

Also silence unused parameter that came about the fix for some versions
of clang.

2006/sloane/Makefile

@@ -40,7 +40,7 @@ include ../../var.mk
 #
 CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-implicit-int \
 	-Wno-pedantic -Wno-return-type -Wno-shift-op-parentheses -Wno-unsequenced \
-	-Wno-deprecated-non-prototype -Wno-main
+	-Wno-deprecated-non-prototype -Wno-main -Wno-unused-parameter
 
 # Common C compiler warning flags
 #