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+# This is a  . Delete it and retype as space.
+
+You copy-pasted some code, probably from a blog or web site, which for formatting reasons contained unicode no-break spaces instead of regular spaces.
+
+They look the same to humans, but not to shells.
+
+If you have just a few, delete the space and retype it. If you have tons, do a search&replace in your editor (copy-paste an offending space into the search field, and type a regular space into the replace field), or use `sed -e $'s/\xC2\xA0/ /g' -i yourfile`.
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