whitespace fix

src/common/compat.h

@@ -78,7 +78,6 @@
 #error "It seems your platform does not represent 0.0 as zeros. We can't cope."
 #endif
 
-
 #if 'a'!=97 || 'z'!=122 || 'A'!=65 || ' '!=32
 #error "It seems that you encode characters in something other than ASCII."
 #endif