Replace Subversion revisions in comments by Git hashes.

libavcodec/lpc.c

@@ -35,8 +35,9 @@ static void lpc_apply_welch_window_c(const int32_t *data, int len,
     double w;
     double c;
 
-    assert(!(len&1)); //the optimization in r11881 does not support odd len
-                      //if someone wants odd len extend the change in r11881
+    /* The optimization in commit fa4ed8c does not support odd len.
+     * If someone wants odd len extend that change. */
+    assert(!(len & 1));
 
     n2 = (len >> 1);
     c = 2.0 / (len - 1.0);

libavutil/aes.c

@@ -33,7 +33,7 @@ typedef union {
 
 typedef struct AVAES {
     // Note: round_key[16] is accessed in the init code, but this only
-    // overwrites state, which does not matter (see also r7471).
+    // overwrites state, which does not matter (see also commit ba554c0).
     av_aes_block round_key[15];
     av_aes_block state[2];
     int rounds;