AT_CHECK([[sed 's/(Entered [^)]*)/(Entered <date>)/' pspp.csv]], [0], [dnl
Table: Reading 1 record from INLINE.
Variable,Record,Columns,Format
-X,1,1- 1,F1.0
-Y,1,2- 2,F1.0
+X,1,1-1,F1.0
+Y,1,2-2,F1.0
Table: Documents
"document First line of a document