Remove non-ASCII characters

Change-Id: If1c68e5aab6990617519150d8aeb3f073df2ad17
diff --git a/lib/swift b/lib/swift
index 96d730e..dac121b 100644
--- a/lib/swift
+++ b/lib/swift
@@ -97,7 +97,7 @@
 # the beginning of the pipeline, before authentication middlewares.
 SWIFT_EXTRAS_MIDDLEWARE_NO_AUTH=${SWIFT_EXTRAS_MIDDLEWARE_NO_AUTH:-crossdomain}
 
-# The ring uses a configurable number of bits from a path’s MD5 hash as
+# The ring uses a configurable number of bits from a path's MD5 hash as
 # a partition index that designates a device. The number of bits kept
 # from the hash is known as the partition power, and 2 to the partition
 # power indicates the partition count. Partitioning the full MD5 hash