Add a hostname override

Based on issue #82, we now provide `-B` to override the hostname. In
particular:

- `mkrc -B foo` will enable `-o` but with the hostname set up `foo`.
- `lsrc -B foo` will work like normal `lsrc` except it treats `host-foo`
as the host-specific directory.
- `rcup -B foo` will run a normal `rcup` except `host-foo` is the
host-specific directory.
- `rcdn -B foo` is just like normal `rcdn`, but with `host-foo` as the
  host-specific directory.

The `HOSTNAME` can also be set in the rcrc(5), and this is overridden by
the aforementioned `-B`.

While making this change: The `test/Makefile.am` used a mix of tabs and
spaces. Since it's a Makefile, replace it all with tabs.

1 files changed, 20 insertions, 17 deletions

diff --git a/test/Makefile.am b/test/Makefile.am
index 9cbc6b2..53dcf0b 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,20 +1,23 @@
 TESTS = \
-  lsrc-dotfiles-dirs.t \
-  lsrc-excludes.t \
-  lsrc-hostname.t \
-  lsrc-sigils.t \
-  lsrc.t \
-  lsrc-tags.t \
-  lsrc-usage.t \
-  mkrc-alternate-dotfiles-dir.t \
-  mkrc-copy-file.t \
-  mkrc-host-file.t \
-  mkrc-simple-output.t \
-  mkrc-tagged-file.t \
-  mkrc-usage.t \
-  rcrc-custom.t \
-  rcrc.t \
-  rcup-link-files.t \
-  rcup-usage.t
+	lsrc-dotfiles-dirs.t \
+	lsrc-excludes.t \
+	lsrc-hostname.t \
+	lsrc-sigils.t \
+	lsrc.t \
+	lsrc-tags.t \
+	lsrc-usage.t \
+	mkrc-alternate-dotfiles-dir.t \
+	mkrc-copy-file.t \
+	mkrc-host-file.t \
+	mkrc-hostname.t \
+	mkrc-simple-output.t \
+	mkrc-tagged-file.t \
+	mkrc-usage.t \
+	rcrc-custom.t \
+	rcrc-hostname.t \
+	rcrc.t \
+	rcup-link-files.t \
+	rcup-hostname.t \
+	rcup-usage.t
 
 LOG_COMPILER = cram