curl: use long arguments (#5872)

pages/common/curl.md

@@ -6,31 +6,31 @@
 
 - Download the contents of an URL to a file:
 
-`curl {{http://example.com}} -o {{filename}}`
+`curl {{http://example.com}} --output {{filename}}`
 
 - Download a file, saving the output under the filename indicated by the URL:
 
-`curl -O {{http://example.com/filename}}`
+`curl --remote-name {{http://example.com/filename}}`
 
-- Download a file, following [L]ocation redirects, and automatically [C]ontinuing (resuming) a previous file transfer:
+- Download a file, following location redirects, and automatically continuing (resuming) a previous file transfer:
 
-`curl -O -L -C - {{http://example.com/filename}}`
+`curl --remote-name --location --continue-at - {{http://example.com/filename}}`
 
-- Send form-encoded data (POST request of type `application/x-www-form-urlencoded`). Use `-d @file_name` or `-d @'-'` to read from STDIN:
+- Send form-encoded data (POST request of type `application/x-www-form-urlencoded`). Use `--data @file_name` or `--data @'-'` to read from STDIN:
 
-`curl -d {{'name=bob'}} {{http://example.com/form}}`
+`curl --data {{'name=bob'}} {{http://example.com/form}}`
 
 - Send a request with an extra header, using a custom HTTP method:
 
-`curl -H {{'X-My-Header: 123'}} -X {{PUT}} {{http://example.com}}`
+`curl --header {{'X-My-Header: 123'}} --request {{PUT}} {{http://example.com}}`
 
 - Send data in JSON format, specifying the appropriate content-type header:
 
-`curl -d {{'{"name":"bob"}'}} -H {{'Content-Type: application/json'}} {{http://example.com/users/1234}}`
+`curl --data {{'{"name":"bob"}'}} --header {{'Content-Type: application/json'}} {{http://example.com/users/1234}}`
 
 - Pass a user name and password for server authentication:
 
-`curl -u myusername:mypassword {{http://example.com}}`
+`curl --user myusername:mypassword {{http://example.com}}`
 
 - Pass client certificate and key for a resource, skipping certificate validation: