- I removed the default use of "Pragma: no-cache" from libcurl when a proxy is

used. It has been used since forever but it was never a good idea to use
  unless explicitly asked for.

tests/data/test1001

@@ -84,7 +84,6 @@ GET http://%HOSTIP:%HTTPPORT/1001 HTTP/1.1
 Content-Range: bytes 2-4/5
 User-Agent: curl/7.12.1-CVS (i686-pc-linux-gnu) libcurl/7.12.1-CVS OpenSSL/0.9.6b ipv6 zlib/1.1.4 GSS libidn/0.4.6
 Host: %HOSTIP:%HTTPPORT
-Pragma: no-cache
 Accept: */*
 Proxy-Connection: Keep-Alive
 Content-Length: 0
@@ -94,7 +93,6 @@ GET http://%HOSTIP:%HTTPPORT/1001 HTTP/1.1
 Authorization: Digest username="auser", realm="testrealm", nonce="1053604144", uri="/1001", response="6af4d89c952f4dd4cc215a6878dc499d"
 Content-Range: bytes 2-4/5
 Host: %HOSTIP:%HTTPPORT
-Pragma: no-cache
 Accept: */*
 Proxy-Connection: Keep-Alive
 Content-Length: 3