Fix potential infloop in fix-info-dir.

This modifies the existing patch to fix-info-dir to also fix an odd
infinite loop that can occur when /dev/null is not a device and  stderr
is redirected there.  https://bugzilla.redhat.com/show_bug.cgi?id=1614162

texinfo-6.5-fix-info-dir.patch

@@ -1,8 +1,36 @@
+This fixes two issues:
+
+https://bugzilla.redhat.com/show_bug.cgi?id=1592433
+This is a bug in fix-info-dir --delete
+(Hunk 3)
+
+https://bugzilla.redhat.com/show_bug.cgi?id=1614162
+This is a weird infinite loop that happens when fix-info-dir is run with stderr
+redirected to /dev/null while /dev/null doesn't exist (or isn't a device)
+(Hunks 1 and 2)
+
 diff --git a/contrib/fix-info-dir b/contrib/fix-info-dir
-index 4439ada..c054787 100755
+index 4439ada..9240060 100755
 --- a/contrib/fix-info-dir
 +++ b/contrib/fix-info-dir
-@@ -294,7 +294,7 @@ else
+@@ -124,6 +124,7 @@ if test "$CREATE_NODE"; then
+ 		fi
+ 		shift
+ 	else
++		SKIP_READ=yes
+ 		SKELETON=/dev/null
+ 
+ 	fi
+@@ -188,7 +189,7 @@ DIR_FILE_END_OF_FILE
+ 
+ 	# Read one line from the file.  This is so that we can echo lines with
+ 	# whitespace and quoted characters in them.
+-	while read fileline; do
++	while test -z "$SKIP_READ" && read fileline; do
+ 		# flag fancy features
+ 		if test ! -z "$echoline"; then        # echo line
+ 			echo "$fileline"
+@@ -294,7 +295,7 @@ else
  	DONE_MSG="total invalid menu item(s) were removed from `pwd`/$DIR_FILE"
  	for Info_Name in `comm -23 $TMP_FILE1 $TMP_FILE2`; do
  		Changed="y"

texinfo.spec

@@ -3,7 +3,7 @@
 Summary: Tools needed to create Texinfo format documentation files
 Name: texinfo
 Version: 6.5
-Release: 10%{?dist}
+Release: 11%{?dist}
 License: GPLv3+
 Url: http://www.gnu.org/software/texinfo/
 Source0: ftp://ftp.gnu.org/gnu/texinfo/texinfo-%{version}.tar.xz
@@ -145,6 +145,11 @@ export ALL_TESTS=yes
 %{_mandir}/man1/pdftexi2dvi.1*
 
 %changelog
+* Thu Oct 04 2018 Jason L Tibbitts III <tibbs@math.uh.edu> - 6.5-11
+- Fix another issue in fix-info-dir which could lead to an infinite loop in odd
+  circumstances.
+  Resolves: #1614162
+
 * Thu Aug 09 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 6.5-10
 - Drop macros.info