hash: update obsolete reference to SHA1_HEADER

We moved away from SHA1_HEADER to a preprocessor if chain, but didn't update the comment discussing the platform defines. Update this comment so it reflects the current state of our codebase. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

brian m. carlson committed Feb 8, 2018 at 02:48 UTC b212c0ca318bc4757b051080f8622796c4524890
1 file changed +2 -2
hash.h
+2 -2
@@ -18,8 +18,8 @@
18 #ifndef platform_SHA_CTX
19 /*
20 * platform's underlying implementation of SHA-1; could be OpenSSL,
21 - * blk_SHA, Apple CommonCrypto, etc... Note that including
22 - * SHA1_HEADER may have already defined platform_SHA_CTX for our
21 + * blk_SHA, Apple CommonCrypto, etc... Note that the relevant
22 + * SHA-1 header may have already defined platform_SHA_CTX for our
23 * own implementations like block-sha1 and ppc-sha1, so we list
24 * the default for OpenSSL compatible SHA-1 implementations here.
25 */