trousers: update ARC comment

Update the comment about the ARC exception to match the one used in VLC,
so that a 'git grep "ARC toolchain issue"' returns the list of packages
to re-evaluate on ARC when the ARC toolchain gets upgraded.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/trousers/Config.in

@@ -5,7 +5,7 @@ config BR2_PACKAGE_TROUSERS
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	# doesn't build properly in static only configurations
 	depends on !BR2_STATIC_LIBS
-	# broken toolchain
+	# ARC toolchain issue
 	depends on !BR2_arc
 	help
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