Libeinfo: do not suppress ewarn() messages

The ewarn() function was affected by the EINFO_QUIET environment
variable which lead to warning messages being suppressed. Warnings
should not be suppressed.

Reported-by: Hanno Boeck <hanno@gentoo.org>
X-Gentoo-Bug: 380073
X-Gentoo-Bug-URL: http://bugs.gentoo.org/show_bug.cgi?id=380073

man/einfo.3

@@ -105,8 +105,7 @@ and
 respectively, but only work when
 .Va EINFO_VERBOSE
 is true. You can also make the
-.Fn einfo ,
-.Fn ewarn ,
+.Fn einfo
 and
 .Fn ebegin
 functions silent by setting