Fix various spelling errors

apps/ecparam.c

diff --git a/apps/ecparam.c b/apps/ecparam.c
index 50eef797..de4e46f 100644
--- a/apps/ecparam.c
+++ b/apps/ecparam.c
@@ -105,7 +105,7 @@
  *                    in the asn1 der encoding
  *                    possible values: named_curve (default)
  *                                     explicit
- * -no_seed         - if 'explicit' parameters are choosen do not use the seed
+ * -no_seed         - if 'explicit' parameters are chosen do not use the seed
  * -genkey          - generate ec key
  * -rand file       - files to use for random number input
  * -engine e        - use engine e, possibly a hardware device
@@ -286,7 +286,7 @@
 		BIO_printf(bio_err, "                                   "
 				" explicit\n");
 		BIO_printf(bio_err, " -no_seed          if 'explicit'"
-				" parameters are choosen do not"
+				" parameters are chosen do not"
 				" use the seed\n");
 		BIO_printf(bio_err, " -genkey           generate ec"
 				" key\n");