Fix typos in apps/enc.c

Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>

apps/enc.c

@@ -108,11 +108,11 @@ OPTIONS enc_options[] = {
      "Used with -[base64|a] to specify base64 buffer as a single line"},
     {"bufsize", OPT_BUFSIZE, 's', "Buffer size"},
     {"k", OPT_K, 's', "Passphrase"},
-    {"kfile", OPT_KFILE, '<', "Fead passphrase from file"},
+    {"kfile", OPT_KFILE, '<', "Read passphrase from file"},
     {"K", OPT_UPPER_K, 's', "Raw key, in hex"},
     {"S", OPT_UPPER_S, 's', "Salt, in hex"},
     {"iv", OPT_IV, 's', "IV in hex"},
-    {"md", OPT_MD, 's', "Use specified digest to create key from passphrase"},
+    {"md", OPT_MD, 's', "Use specified digest to create a key from the passphrase"},
     {"none", OPT_NONE, '-', "Don't encrypt"},
     {"", OPT_CIPHER, '-', "Any supported cipher"},
 #ifdef ZLIB