opts: fixed a few typos

docs/libcurl/opts/CURLOPT_CUSTOMREQUEST.3

@@ -76,7 +76,7 @@ Instead of a HELP or VRFY when issuing SMTP based requests.
 
 For example:
 
-Normally a multiline response is returned which can be used, in conjuection
+Normally a multiline response is returned which can be used, in conjunction
 with \fICURLOPT_MAIL_RCPT(3)\fP, to specify an EXPN request. If the
 \fICURLOPT_NOBODY(3)\fP option is specified then the request can be used to
 issue NOOP and RSET commands.

docs/libcurl/opts/CURLOPT_OPENSOCKETFUNCTION.3

@@ -22,7 +22,7 @@
 .\"
 .TH CURLOPT_OPENSOCKETFUNCTION 3 "16 Jun 2014" "libcurl 7.37.0" "curl_easy_setopt options"
 .SH NAME
-CURLOPT_OPENSOCKETFUNCTION \- set callback for openening socket
+CURLOPT_OPENSOCKETFUNCTION \- set callback for opening sockets
 .SH SYNOPSIS
 .nf
 #include <curl/curl.h>

docs/libcurl/opts/CURLOPT_TIMEOUT.3

@@ -39,7 +39,7 @@ In unix-like systems, this might cause signals to be used unless
 
 Since this puts a hard limit for how long time a request is allowed to take,
 it has limited use in dynamic use cases with varying transfer times. You are
-then adviced to explore \fICURLOPT_LOW_SPEED_LIMIT(3)\fP,
+then advised to explore \fICURLOPT_LOW_SPEED_LIMIT(3)\fP,
 \fICURLOPT_LOW_SPEED_TIME(3)\fP or using \fICURLOPT_PROGRESSFUNCTION(3)\fP to
 implement your own timeout logic.
 .SH DEFAULT

docs/libcurl/opts/CURLOPT_URL.3

@@ -182,7 +182,7 @@ the user's inbox, checks the UIDVALIDITY of the mailbox is 50 and fetches
 message 2 if it is
 
 imap://user:password@mail.example.com/INBOX/;UID=3/;SECTION=TEXT - Selects the
-user's inbox and fetches the text portial of message 3
+user's inbox and fetches the text portion of message 3
 
 imap://user:password@mail.example.com/INBOX/;UID=4/;PARTIAL=0.1024 - Selects
 the user's inbox and fetches the first 1024 octets of message 4