doc: Fix whitespace in markup

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 5b2c87705ef950e9e2a320df48bb278554f3e4c5..48df9f869a788ad65adc49c569087eff1a13c406 100644 (file)
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -12983,9 +12983,9 @@ table2-mapping
    WHERE clause in SQL. A filter expression begins with
    a question mark and provides a condition in parentheses:
 
-    
+
 ? (condition)
-    
+