Resolve some rpmlint issue in SPEC.

Following messages reported by rpmlint on RHEL is fixed by this patch:
lcov.src: W: invalid-license GPL
lcov.src:9: W: hardcoded-path-in-buildroot-tag
/var/tmp/%{name}-%{version}-root
lcov.src: E: specfile-error warning: bogus date in %changelog: Fri Oct 8
2002 Peter Oberparleiter (Peter.Oberparleiter@de.ibm.com)
lcov.noarch: W: non-conffile-in-etc /etc/lcovrc

Signed-off-by: Ziqian SUN (Zamir) <zsun@redhat.com>
[oberpar@linux.vnet.ibm.com: Corrected license to GPLv2+]

rpm/lcov.spec

@@ -2,11 +2,11 @@ Summary: A graphical GCOV front-end
 Name: lcov
 Version: 1.13
 Release: 1
-License: GPL
+License: GPLv2+
 Group: Development/Tools
 URL: http://ltp.sourceforge.net/coverage/lcov.php
-Source0: http://downloads.sourceforge.net/ltp/lcov-%{version}.tar.gz
-BuildRoot: /var/tmp/%{name}-%{version}-root
+Source0: http://downloads.sourceforge.net/ltp/%{name}-%{version}.tar.gz
+BuildRoot: %{_tmppath}/%{name}-%{version}-root
 BuildArch: noarch
 Requires: perl >= 5.8.8
 
@@ -17,7 +17,7 @@ source code annotated with coverage information. It also adds overview pages
 for easy navigation within the file structure.
 
 %prep
-%setup -q -n lcov-%{version}
+%setup -q -n %{name}-%{version}
 
 %build
 exit 0
@@ -33,21 +33,27 @@ rm -rf $RPM_BUILD_ROOT
 %defattr(-,root,root)
 /usr/bin/*
 /usr/share/man/man*/*
-/etc/*
+%config /etc/*
 
 %changelog
 * Mon Aug 22 2016 Peter Oberparleiter (Peter.Oberparleiter@de.ibm.com)
 - updated "make install" call to work with PREFIX Makefile changes
+
 * Mon May 07 2012 Peter Oberparleiter (Peter.Oberparleiter@de.ibm.com)
 - added dependency on perl 5.8.8 for >>& open mode support
+
 * Wed Aug 13 2008 Peter Oberparleiter (Peter.Oberparleiter@de.ibm.com)
 - changed description + summary text
+
 * Mon Aug 20 2007 Peter Oberparleiter (Peter.Oberparleiter@de.ibm.com)
 - fixed "Copyright" tag
+
 * Mon Jul 14 2003 Peter Oberparleiter (Peter.Oberparleiter@de.ibm.com)
 - removed variables for version/release to support source rpm building
 - added initial rm command in install section
+
 * Mon Apr 7 2003 Peter Oberparleiter (Peter.Oberparleiter@de.ibm.com)
 - implemented variables for version/release
-* Fri Oct 8 2002 Peter Oberparleiter (Peter.Oberparleiter@de.ibm.com)
+
+* Fri Oct 18 2002 Peter Oberparleiter (Peter.Oberparleiter@de.ibm.com)
 - created initial spec file