Merge branch 'suppress-t0040-whitespace-error'

A recently-introduced commit fails Git's own whitespace check. Fix this
by exempting the affected file from that particular whitespace check
because it does not apply here.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

t/.gitattributes

@@ -22,3 +22,4 @@ t[0-9][0-9][0-9][0-9]/* -whitespace
 /t7500/* eol=lf
 /t8005/*.txt eol=lf
 /t9*/*.dump eol=lf
+/t0040*.sh whitespace=-indent-with-non-tab