Function String_Format2

src/String.c:427–429

	String_Format4(str, format, a1, NULL, NULL, NULL);
}
void String_Format2(cc_string* str, const char* format, const void* a1, const void* a2) {
	String_Format4(str, format, a1, a2, NULL, NULL);
}
void String_Format3(cc_string* str, const char* format, const void* a1, const void* a2, const void* a3) {
	String_Format4(str, format, a1, a2, a3, NULL);
}