more clean-up of headers/footers

src/hashes/blake2b.c

@@ -582,3 +582,7 @@ int blake2b_160_test(void)
 }
 
 #endif
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */

src/hashes/blake2s.c

@@ -557,3 +557,7 @@ int blake2s_128_test(void)
 }
 
 #endif
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */

src/hashes/rmd256.c

@@ -425,3 +425,6 @@ int rmd256_test(void)
 
 #endif
 
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */

src/hashes/rmd320.c

@@ -490,3 +490,6 @@ int rmd320_test(void)
 
 #endif
 
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */

src/hashes/sha3.c

@@ -300,3 +300,7 @@ int sha3_shake_memory(int num, const unsigned char *in, unsigned long inlen, uns
 }
 
 #endif
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */

src/hashes/sha3_test.c

@@ -395,3 +395,7 @@ int sha3_shake_test(void)
 }
 
 #endif
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */