Merge #1115: Fix sepc256k1 -> secp256k1 typo in group.h

069aba8 Fix sepc256k1 -> secp256k1 typo in group.h (henopied)

Pull request description:

ACKs for top commit:
  real-or-random:
    ACK 069aba8

Tree-SHA512: 0fcb7d042f201737870da99f5425c8449e9ec3f5f8e9bbe5eb719e46cdf230db057509fb9102d4ce50a94d616015233c29249665c754e726899174fea3ea9f40

Author: real-or-random

src/group.h

@@ -23,7 +23,7 @@ typedef struct {
 #define SECP256K1_GE_CONST_INFINITY {SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 0), 1}
 
 /** A group element of the secp256k1 curve, in jacobian coordinates.
- *  Note: For exhastive test mode, sepc256k1 is replaced by a small subgroup of a different curve.
+ *  Note: For exhastive test mode, secp256k1 is replaced by a small subgroup of a different curve.
  */
 typedef struct {
     secp256k1_fe x; /* actual X: x/z^2 */