CodingGuidelines: let BSS do its job

We have mentioned this in various reviews, but I didn't see it mentioned in the CodingGuildelines document. Let's add it. Signed-off-by: Junio C Hamano <gitster@pobox.com>

Junio C Hamano committed Jun 11, 2025 at 14:16 UTC fdbea0870e4abecfa28eb5b196104fcd18e1c6d1
1 file changed +3
Documentation/CodingGuidelines
+3
@@ -315,6 +315,9 @@ For C programs:
315 encouraged to have a blank line between the end of the declarations
316 and the first statement in the block.
317
318 + - Do not explicitly initialize global variables to 0 or NULL;
319 + instead, let BSS take care of the zero initialization.
320 +
321 - NULL pointers shall be written as NULL, not as 0.
322
323 - When declaring pointers, the star sides with the variable