Make 2006/sykes2 main() have two args

This is out of an abundance of caution as some of the versions of clang
report that main() can only have 0, 2 or 3 args to main(), not 4 or
anything else. The version (clang version 17.0.4) I have encountered
this with actually allows 1 arg but since clang is so picky I decided to
make a second unused arg (a char **) in case the devs decide to ruin
even more fun programs. There are other entries that also use one arg to
main() and I will try locating those too, first with the entries I have
not reviewed yet and then later on (time constraints notwithstanding)
the ones I have already reviewed.

Makefile updated with new -Wno- options for clang with linux.

2006/sykes2/Makefile

@@ -40,7 +40,8 @@ include ../../var.mk
 #
 CSILENCE= -Wno-bitwise-op-parentheses -Wno-char-subscripts -Wno-error \
 	-Wno-implicit-function-declaration -Wno-implicit-int -Wno-main \
-	-Wno-pedantic -Wno-deprecated-non-prototype
+	-Wno-pedantic -Wno-deprecated-non-prototype -Wno-unused-parameter \
+	-Wno-parentheses
 
 # Common C compiler warning flags
 #

2006/sykes2/sykes2.c

@@ -1 +1 @@
-main(_){_^448&&main(-~_);putchar(--_%64?32|-~7[__TIME__-_/8%8][">'txiZ^(~z?"-48]>>";;;====~$::199"[_*2&8|_/64]/(_&2?1:8)%8&1:10);}
+main(_,v)char**v;{_^448&&main(-~_,v);putchar(--_%64?32|-~7[__TIME__-_/8%8][">'txiZ^(~z?"-48]>>";;;====~$::199"[_*2&8|_/64]/(_&2?1:8)%8&1:10);}