nspawn: minor improvements to --help text

diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 5ff02130d65815dd3e289bf1966ddc544613c80c..05a74b91fb296f9869f451d06f93cad3b0355c5e 100644 (file)
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -285,11 +285,12 @@ static int help(void) {
                "                            if missing\n"
                "  -x --ephemeral            Run container with snapshot of root directory, and\n"
                "                            remove it after exit\n"
-               "  -i --image=PATH           File system device or disk image for the container\n"
+               "  -i --image=PATH           Root file system disk image (or device node) for\n"
+               "                            the container\n"
                "     --oci-bundle=PATH      OCI bundle directory\n"
                "     --read-only            Mount the root directory read-only\n"
                "     --volatile[=MODE]      Run the system in volatile mode\n"
-               "     --root-hash=HASH       Specify verity root hash\n"
+               "     --root-hash=HASH       Specify verity root hash for root disk image\n"
                "     --pivot-root=PATH[:PATH]\n"
                "                            Pivot root to given directory in the container\n\n"
                "%3$sExecution:%4$s\n"