Fix typos

src/ecmult_impl.h

@@ -220,7 +220,7 @@ struct secp256k1_strauss_state {
 static void secp256k1_ecmult_strauss_wnaf(const struct secp256k1_strauss_state *state, secp256k1_gej *r, size_t num, const secp256k1_gej *a, const secp256k1_scalar *na, const secp256k1_scalar *ng) {
     secp256k1_ge tmpa;
     secp256k1_fe Z;
-    /* Splitted G factors. */
+    /* Split G factors. */
     secp256k1_scalar ng_1, ng_128;
     int wnaf_ng_1[129];
     int bits_ng_1 = 0;

src/scalar_impl.h

@@ -74,7 +74,7 @@ static void secp256k1_scalar_split_lambda_verify(const secp256k1_scalar *r1, con
  * Both lambda and beta are primitive cube roots of unity.  That is lamba^3 == 1 mod n and
  * beta^3 == 1 mod p, where n is the curve order and p is the field order.
  *
- * Futhermore, because (X^3 - 1) = (X - 1)(X^2 + X + 1), the primitive cube roots of unity are
+ * Furthermore, because (X^3 - 1) = (X - 1)(X^2 + X + 1), the primitive cube roots of unity are
  * roots of X^2 + X + 1.  Therefore lambda^2 + lamba == -1 mod n and beta^2 + beta == -1 mod p.
  * (The other primitive cube roots of unity are lambda^2 and beta^2 respectively.)
  *

src/tests.c

@@ -3225,7 +3225,7 @@ void test_intialized_inf(void) {
     secp256k1_gej pj, npj, infj1, infj2, infj3;
     secp256k1_fe zinv;
 
-    /* Test that adding P+(-P) results in a fully initalized infinity*/
+    /* Test that adding P+(-P) results in a fully initialized infinity*/
     random_group_element_test(&p);
     secp256k1_gej_set_ge(&pj, &p);
     secp256k1_gej_neg(&npj, &pj);