*: reflow comments to 80 characters

This reformats the entire Metropolis codebase to have comments no longer
than 80 characters, implementing CR/66.

This has been done half manually, as we don't have a good integration
between commentwrap/Bazel, but that can be implemented if we decide to
go for this tool/limit.

Change-Id: If1fff0b093ef806f5dc00551c11506e8290379d0
diff --git a/metropolis/pkg/fsquota/fsquota_test.go b/metropolis/pkg/fsquota/fsquota_test.go
index 4729dac..392a0e9 100644
--- a/metropolis/pkg/fsquota/fsquota_test.go
+++ b/metropolis/pkg/fsquota/fsquota_test.go
@@ -29,9 +29,9 @@
 	"golang.org/x/sys/unix"
 )
 
-// withinTolerance is a helper for asserting that a value is within a certain percentage of the
-// expected value. The tolerance is specified as a float between 0 (exact match)
-// and 1 (between 0 and twice the expected value).
+// withinTolerance is a helper for asserting that a value is within a certain
+// percentage of the expected value. The tolerance is specified as a float
+// between 0 (exact match) and 1 (between 0 and twice the expected value).
 func withinTolerance(t *testing.T, expected uint64, actual uint64, tolerance float64, name string) {
 	t.Helper()
 	delta := uint64(math.Round(float64(expected) * tolerance))
@@ -131,8 +131,9 @@
 		require.Equal(t, uint64(bytesQuota), quotaUtil.Bytes, "bytes quota readback incorrect")
 		require.Equal(t, uint64(inodesQuota), quotaUtil.Inodes, "inodes quota readback incorrect")
 
-		// Give 10% tolerance for quota used values to account for metadata overhead and internal
-		// structures that are also in there. If it's out by more than that it's an issue anyways.
+		// Give 10% tolerance for quota used values to account for metadata
+		// overhead and internal structures that are also in there. If it's out
+		// by more than that it's an issue anyways.
 		withinTolerance(t, uint64(len(sizeFileData)), quotaUtil.BytesUsed, 0.1, "BytesUsed")
 
 		// Write 50 inodes for a total of 51 (with the 512K file)