Add .dpkg-bak and .dpkg-del to default taboo list (#134)

See https://bugs.debian.org/716649

ChangeLog.md

@@ -6,6 +6,8 @@ All notable changes to this project will be documented in this file.
 [UNRELEASED]: https://github.com/logrotate/logrotate/compare/3.12.3...master
+  - add ```.dpkg-bak``` and ```.dpkg-del``` to default tabooext list
+
 ## [3.12.3] - 2017-06-30
   - ```copy``` and ```copytruncate``` directives now work together again

config.c

@@ -130,6 +130,8 @@ static const char *defTabooExts[] = {
 	",v",
 	".cfsaved",
 	".disabled",
+	".dpkg-bak",
+	".dpkg-del",
 	".dpkg-dist",
 	".dpkg-new",
 	".dpkg-old",

logrotate.8.in

@@ -576,6 +576,8 @@ is replaced. At startup, the taboo extension list
 .IR ,v ,
 .IR .cfsaved ,
 .IR .disabled ,
+.IR .dpkg\-bak ,
+.IR .dpkg\-del ,
 .IR .dpkg\-dist ,
 .IR .dpkg\-new ,
 .IR .dpkg\-old ,