curl: use 2TLS by default

Make this the default for the curl tool (if built with HTTP/2 powers
enabled) unless a specific HTTP version is requested on the command
line.

This should allow more users to get HTTP/2 powers without having to
change anything.

tests/data/test1400

@@ -46,10 +46,11 @@ Accept: */*
 </protocol>
 <stripfile>
 s/(USERAGENT, \")[^\"]+/${1}stripped/
-# CURLOPT_SSL_VERIFYPEER and SSH_KNOWNHOSTS vary with configurations - just
-# ignore them
+# CURLOPT_SSL_VERIFYPEER, SSH_KNOWNHOSTS and HTTP_VERSION vary with
+# configurations - just ignore them
 $_ = '' if /CURLOPT_SSL_VERIFYPEER/
 $_ = '' if /CURLOPT_SSH_KNOWNHOSTS/
+$_ = '' if /CURLOPT_HTTP_VERSION/
 </stripfile>
 <file name="log/test1400.c" mode="text">
 /********* Sample code generated by the curl command line tool **********

tests/data/test1401

@@ -53,10 +53,11 @@ X-Men: cyclops, iceman
 
 </protocol>
 <stripfile>
-# CURLOPT_SSL_VERIFYPEER and SSH_KNOWNHOSTS vary with configurations - just
-# ignore them
+# CURLOPT_SSL_VERIFYPEER, SSH_KNOWNHOSTS and HTTP_VERSION vary with
+# configurations - just ignore them
 $_ = '' if /CURLOPT_SSL_VERIFYPEER/
 $_ = '' if /CURLOPT_SSH_KNOWNHOSTS/
+$_ = '' if /CURLOPT_HTTP_VERSION/
 </stripfile>
 <file name="log/test1401.c" mode="text">
 /********* Sample code generated by the curl command line tool **********

tests/data/test1402

@@ -51,10 +51,11 @@ foo=bar&baz=quux
 <stripfile>
 # curl's default user-agent varies with version, libraries etc.
 s/(USERAGENT, \")[^\"]+/${1}stripped/
-# CURLOPT_SSL_VERIFYPEER and SSH_KNOWNHOSTS vary with configurations - just
-# ignore them
+# CURLOPT_SSL_VERIFYPEER, SSH_KNOWNHOSTS and HTTP_VERSION vary with
+# configurations - just ignore them
 $_ = '' if /CURLOPT_SSL_VERIFYPEER/
 $_ = '' if /CURLOPT_SSH_KNOWNHOSTS/
+$_ = '' if /CURLOPT_HTTP_VERSION/
 </stripfile>
 <file name="log/test1402.c" mode="text">
 /********* Sample code generated by the curl command line tool **********

tests/data/test1403

@@ -48,10 +48,11 @@ Accept: */*
 <stripfile>
 # curl's default user-agent varies with version, libraries etc.
 s/(USERAGENT, \")[^\"]+/${1}stripped/
-# CURLOPT_SSL_VERIFYPEER and SSH_KNOWNHOSTS vary with configurations - just
-# ignore them
+# CURLOPT_SSL_VERIFYPEER, SSH_KNOWNHOSTS and HTTP_VERSION vary with
+# configurations - just ignore them
 $_ = '' if /CURLOPT_SSL_VERIFYPEER/
 $_ = '' if /CURLOPT_SSH_KNOWNHOSTS/
+$_ = '' if /CURLOPT_HTTP_VERSION/
 </stripfile>
 <file name="log/test1403.c" mode="text">
 /********* Sample code generated by the curl command line tool **********

tests/data/test1404

@@ -83,10 +83,11 @@ dummy data
 <stripfile>
 # curl's default user-agent varies with version, libraries etc.
 s/(USERAGENT, \")[^\"]+/${1}stripped/
-# CURLOPT_SSL_VERIFYPEER and SSH_KNOWNHOSTS vary with configurations - just
-# ignore them
+# CURLOPT_SSL_VERIFYPEER, SSH_KNOWNHOSTS and HTTP_VERSION vary with
+# configurations - just ignore them
 $_ = '' if /CURLOPT_SSL_VERIFYPEER/
 $_ = '' if /CURLOPT_SSH_KNOWNHOSTS/
+$_ = '' if /CURLOPT_HTTP_VERSION/
 </stripfile>
 <file name="log/test1404.c" mode="text">
 /********* Sample code generated by the curl command line tool **********

tests/data/test1405

@@ -127,10 +127,11 @@ int main(int argc, char *argv[])
 # support, IOW depends on configuration - just ignore these.
 $_ = '' if /CURLOPT_USERAGENT/
 $_ = '' if /CURLOPT_MAXREDIRS/
-# CURLOPT_SSL_VERIFYPEER and SSH_KNOWNHOSTS vary with configurations - just
-# ignore them
+# CURLOPT_SSL_VERIFYPEER, SSH_KNOWNHOSTS and HTTP_VERSION vary with
+# configurations - just ignore them
 $_ = '' if /CURLOPT_SSL_VERIFYPEER/
 $_ = '' if /CURLOPT_SSH_KNOWNHOSTS/
+$_ = '' if /CURLOPT_HTTP_VERSION/
 </stripfile>
 </verify>
 </testcase>

tests/data/test1406

@@ -116,10 +116,11 @@ int main(int argc, char *argv[])
 <stripfile>
 # curl's default user-agent varies with version, libraries etc.
 s/(USERAGENT, \")[^\"]+/${1}stripped/
-# CURLOPT_SSL_VERIFYPEER and SSH_KNOWNHOSTS vary with configurations - just
-# ignore them
+# CURLOPT_SSL_VERIFYPEER, SSH_KNOWNHOSTS and HTTP_VERSION vary with
+# configurations - just ignore them
 $_ = '' if /CURLOPT_SSL_VERIFYPEER/
 $_ = '' if /CURLOPT_SSH_KNOWNHOSTS/
+$_ = '' if /CURLOPT_HTTP_VERSION/
 </stripfile>
 </verify>
 </testcase>

tests/data/test1407

@@ -94,10 +94,11 @@ int main(int argc, char *argv[])
 <stripfile>
 # curl's default user-agent varies with version, libraries etc.
 s/(USERAGENT, \")[^\"]+/${1}stripped/
-# CURLOPT_SSL_VERIFYPEER and SSH_KNOWNHOSTS vary with configurations - just
-# ignore them
+# CURLOPT_SSL_VERIFYPEER, SSH_KNOWNHOSTS and HTTP_VERSION vary with
+# configurations - just ignore them
 $_ = '' if /CURLOPT_SSL_VERIFYPEER/
 $_ = '' if /CURLOPT_SSH_KNOWNHOSTS/
+$_ = '' if /CURLOPT_HTTP_VERSION/
 </stripfile>
 </verify>
 </testcase>

tests/data/test1420

@@ -99,10 +99,11 @@ int main(int argc, char *argv[])
 <stripfile>
 # curl's default user-agent varies with version, libraries etc.
 s/(USERAGENT, \")[^\"]+/${1}stripped/
-# CURLOPT_SSL_VERIFYPEER and SSH_KNOWNHOSTS vary with configurations - just
-# ignore them
+# CURLOPT_SSL_VERIFYPEER, SSH_KNOWNHOSTS and HTTP_VERSION vary with
+# configurations - just ignore them
 $_ = '' if /CURLOPT_SSL_VERIFYPEER/
 $_ = '' if /CURLOPT_SSH_KNOWNHOSTS/
+$_ = '' if /CURLOPT_HTTP_VERSION/
 </stripfile>
 </verify>
 </testcase>