Prettify spec some more and remove trailing space

ftp.spec

@@ -43,7 +43,7 @@ The ftp package provides the standard UNIX command-line FTP (File
 Transfer Protocol) client.  FTP is a widely used protocol for
 transferring files over the Internet and for archiving files.
 
-If your system is on a network, you should install ftp in order to do 
+If your system is on a network, you should install ftp in order to do
 file transfers.
 
 %prep
@@ -91,16 +91,12 @@ perl -pi -e '
 make %{?_smp_mflags}
 
 %install
-rm -rf ${RPM_BUILD_ROOT}
 mkdir -p ${RPM_BUILD_ROOT}%{_bindir}
 mkdir -p ${RPM_BUILD_ROOT}%{_mandir}/man1
 mkdir -p ${RPM_BUILD_ROOT}%{_mandir}/man5
 
 make INSTALLROOT=${RPM_BUILD_ROOT} install
 
-%clean
-rm -rf ${RPM_BUILD_ROOT}
-
 %files
 %{_bindir}/ftp
 %{_bindir}/pftp
@@ -111,6 +107,7 @@ rm -rf ${RPM_BUILD_ROOT}
 %changelog
 * Fri Aug 03 2012 Jan Synáček <jsynacek@redhat.com> - 0.17-58
 - Extend the input line buffer and the argument storage buffer
+- Prettify spec some more and remove trailing space
 
 * Fri Jul 20 2012 Jan Synáček <jsynacek@redhat.com> - 0.17-57
 - Remove nested include (fix compilation in rawhide)