language: "email"

Missed three occurrences.

Follow-up to 7a92f86

docs/INTERNALS.md

@@ -18,7 +18,7 @@ curl internals
  - [FILE](#file)
  - [SMB](#smb)
  - [LDAP](#ldap)
- - [E-mail](#email)
+ - [Email](#email)
  - [General](#general)
  - [Persistent Connections](#persistent)
  - [multi interface/non-blocking](#multi)
@@ -354,7 +354,7 @@ LDAP
  Everything LDAP is in `lib/ldap.c` and `lib/openldap.c`.
 
 <a name="email"></a>
-E-mail
+Email
 ======
 
  The email related source code is in `lib/imap.c`, `lib/pop3.c` and

docs/libcurl/libcurl-tutorial.3

@@ -1221,7 +1221,7 @@ alternative and a file attachment encoded in base64:
  curl_mime *message = curl_mime_init(easyhandle);
 
  /* The inline part is an alternative proposing the html and the text
-    versions of the e-mail. */
+    versions of the email. */
  curl_mime *alt = curl_mime_init(easyhandle);
 
  /* HTML message. */