dracut-install: default --firmwaredirs

[marcosfrm]

Since dracut-install has a default value for --kerneldir (see #1505), --firmwaredirs should follow it. What do you think?

diff --git a/src/install/dracut-install.c b/src/install/dracut-install.c
index 3fd70fc8..4798fc6d 100644
--- a/src/install/dracut-install.c
+++ b/src/install/dracut-install.c
@@ -1183,14 +1183,12 @@ static int parse_argv(int argc, char *argv[])

                         path = getenv("DRACUT_FIRMWARE_PATH");

-                        if (path == NULL) {
-                                log_error("Environment variable DRACUT_FIRMWARE_PATH is not set");
-                                exit(EXIT_FAILURE);
+                        if (path) {
+                                log_debug("DRACUT_FIRMWARE_PATH=%s", path);
+                                firmwaredirs = strv_split(path, ":");
+                        } else {
+                                firmwaredirs = strv_new("/lib/firmware", NULL);
                         }
-
-                        log_debug("DRACUT_FIRMWARE_PATH=%s", path);
-
-                        firmwaredirs = strv_split(path, ":");
                 }
         }

[johannbg]

@marcosfrm I think it's great and a bit of a side note since it's a bit redundant to create an issue and a PR.
If the scope of your change is small ( like this one and your previous one ) then there is no need for you to make an issue to discuss some potential PR's that come out of it.

It's better and more efficient if you just make a PR for your fixes/enhancements submit it and we will discuss and review the PR and ack/nack it there.

[marcosfrm]

Right. Let's continue in #1516.