[Bug-wget] strange behaviour

[VINEETHSIVARAMAN]

 Hello Team ,

My server is behind a firewall and a  proxy, but when i give  2 "wget" in
command  gives me a DNS resolution but not with the single wget !

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[~]$ nslookup google.com

Non-authoritative answer:
Name:   google.com
Address: 74.125.24.102
Name:   google.com
Address: 74.125.24.101
Name:   google.com
Address: 74.125.24.139
Name:   google.com
Address: 74.125.24.113
Name:   google.com
Address: 74.125.24.138
Name:   google.com
Address: 74.125.24.100

[~]$ wget google.com --no-proxy -d
DEBUG output created by Wget 1.14 on linux-gnu.

URI encoding = ‘UTF-8’
Converted file name 'index.html' (UTF-8) -> 'index.html' (UTF-8)
Converted file name 'index.html' (UTF-8) -> 'index.html' (UTF-8)
--2018-05-10 06:24:33--  http://google.com/
Resolving google.com (google.com)... failed: Name or service not known.
wget: unable to resolve host address ‘google.com’
[ ~]$ wget wget google.com --no-proxy -d
DEBUG output created by Wget 1.14 on linux-gnu.

URI encoding = ‘UTF-8’
Converted file name 'index.html' (UTF-8) -> 'index.html' (UTF-8)
Converted file name 'index.html' (UTF-8) -> 'index.html' (UTF-8)
--2018-05-10 06:24:40--  http://wget/
Resolving wget (wget)... failed: Name or service not known.
wget: unable to resolve host address ‘wget’
URI encoding = ‘UTF-8’
Converted file name 'index.html' (UTF-8) -> 'index.html' (UTF-8)
Converted file name 'index.html' (UTF-8) -> 'index.html' (UTF-8)
--2018-05-10 06:24:40--  http://google.com/
Resolving google.com (google.com)... 74.125.24.101, 74.125.24.139,
74.125.24.113, ...
Caching google.com => 74.125.24.101 74.125.24.139 74.125.24.113
74.125.24.138 74.125.24.100 74.125.24.102 2404:6800:4003:c03::71
Connecting to google.com (google.com)|74.125.24.101|:80... ^C
[ ~]$