doc: make -f Makefile.doc (#2919)

mechanical change: create the manual pages.

Signed-off-by: Miek Gieben <miek@miek.nl>

man/coredns-import.7

@@ -1,11 +1,11 @@
 .\" Generated by Mmark Markdown Processer - mmark.nl
-.TH "COREDNS-IMPORT" "7" "April 2019" "CoreDNS" "CoreDNS Plugins"
+.TH "COREDNS-IMPORT" 7 "June 2019" "CoreDNS" "CoreDNS Plugins"
 
-.SH NAME
+.SH "NAME"
 .PP
 \fIimport\fP - include files or reference snippets from a Corefile.
 
-.SH DESCRIPTION
+.SH "DESCRIPTION"
 .PP
 The \fIimport\fP plugin can be used to include files into the main configuration. Another use it to
 reference predefined snippets. Both can help to avoid some duplication.
@@ -14,7 +14,7 @@ reference predefined snippets. Both can help to avoid some duplication.
 This is a unique directive in that \fIimport\fP can appear outside of a server block. In other words, it
 can appear at the top of a Corefile where an address would normally be.
 
-.SH SYNTAX
+.SH "SYNTAX"
 .PP
 .RS
 
@@ -29,13 +29,13 @@ import PATTERN
 this line, as if that file's contents appeared here to begin with.
 
 
-.SH FILES
+.SH "FILES"
 .PP
 You can use \fIimport\fP to include a file or files. This file's location is relative to the
 Corefile's location. It is an error if a specific file cannot be found, but an empty glob pattern is
 not an error.
 
-.SH SNIPPETS
+.SH "SNIPPETS"
 .PP
 You can define snippets to be reused later in your Corefile by defining a block with a single-token
 label surrounded by parentheses:
@@ -63,7 +63,7 @@ import mysnippet
 .fi
 .RE
 
-.SH EXAMPLES
+.SH "EXAMPLES"
 .PP
 Import a shared configuration:
 
@@ -104,7 +104,7 @@ import ../zones/*
 .fi
 .RE
 
-.SH ALSO SEE
+.SH "ALSO SEE"
 .PP
 See corefile(5).