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-rw-r--r--misc/blkid.8.in3
1 files changed, 2 insertions, 1 deletions
diff --git a/misc/blkid.8.in b/misc/blkid.8.in
index 42ad0d71..8a4e9718 100644
--- a/misc/blkid.8.in
+++ b/misc/blkid.8.in
@@ -61,7 +61,8 @@ scanned but not necessarily available at this time), specify
.IR /dev/null.
.TP
.B \-g
-Perform a garbage collection pass on the blkid cache.
+Perform a garbage collection pass on the blkid cache to remove
+devices which no longer exist.
.TP
.B \-h
Display a usage message and exit.