Make -f Makefile.doc: mechanical change (#3082)

Wanted this *before* 1.6.1 but I forgot; ah well...
Signed-off-by: Miek Gieben <miek@miek.nl>

man/coredns-file.7

 .\" Generated by Mmark Markdown Processer - mmark.nl
-.TH "COREDNS-FILE" 7 "July 2019" "CoreDNS" "CoreDNS Plugins"
+.TH "COREDNS-FILE" 7 "August 2019" "CoreDNS" "CoreDNS Plugins"
 
 .SH "NAME"
 .PP

man/coredns-hosts.7

 .\" Generated by Mmark Markdown Processer - mmark.nl
-.TH "COREDNS-HOSTS" 7 "July 2019" "CoreDNS" "CoreDNS Plugins"
+.TH "COREDNS-HOSTS" 7 "August 2019" "CoreDNS" "CoreDNS Plugins"
 
 .SH "NAME"
 .PP
@@ -17,6 +17,10 @@ The plugin reloads the content of the hosts file every 5 seconds. Upon reload, C
 new definitions. Should the file be deleted, any inlined content will continue to be served. When
 the file is restored, it will then again be used.
 
+.PP
+If you want to pass the request to the rest of the plugin chain if there is no match in the \fIhosts\fP
+plugin, you must specify the \fB\fCfallthrough\fR option.
+
 .PP
 This plugin can only be used once per Server Block.
 
@@ -76,7 +80,10 @@ file path will still be read but entries will be overridden.
 .IP \(bu 4
 \fB\fCttl\fR change the DNS TTL of the records generated (forward and reverse). The default is 3600 seconds (1 hour).
 .IP \(bu 4
-\fB\fCreload\fR change the period between each hostsfile reload. A time of zero seconds disable the feature. Examples of valid durations: "300ms", "1.5h" or "2h45m" are valid duration with units "ns" (nanosecond), "us" (or "µs" for microsecond), "ms" (millisecond), "s" (second), "m" (minute), "h" (hour).
+\fB\fCreload\fR change the period between each hostsfile reload. A time of zero seconds disables the
+feature. Examples of valid durations: "300ms", "1.5h" or "2h45m". See Go's
+time
+\[la]https://godoc.org/time\[ra]. package.
 .IP \(bu 4
 \fB\fCno_reverse\fR disable the automatic generation of the \fB\fCin-addr.arpa\fR or \fB\fCip6.arpa\fR entries for the hosts
 .IP \(bu 4

man/coredns-reload.7

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-.TH "COREDNS-RELOAD" 7 "July 2019" "CoreDNS" "CoreDNS Plugins"
+.TH "COREDNS-RELOAD" 7 "August 2019" "CoreDNS" "CoreDNS Plugins"
 
 .SH "NAME"
 .PP
@@ -131,8 +131,9 @@ closed in step 1; so the health endpoint is broken. The same can hopen in the pr
 In general be careful with assigning new port and expecting reload to work fully.
 
 .PP
-Also any \fB\fCimport\fR statement is not discovered by this plugin. This means if any of these imported files
-changes the \fIreload\fP plugin is ignorant of that fact.
+In CoreDNS v1.6.0 and earlier any \fB\fCimport\fR statements are not discovered by this plugin.
+This means if any of these imported files changes the \fIreload\fP plugin is ignorant of that fact.
+CoreDNS v1.7.0 and later does parse the Corefile and supports detecting changes in imported files.
 
 .SH "METRICS"
 .PP