[libgda] gda_sql_expr_serialize(): Correct copy/pasted documentation.

[Murray Cumming <murrayc src gnome org>]

commit 5dfd762fedd5a159d657b1377b08bca495b29525
Author: Murray Cumming <murrayc murrayc com>
Date:   Thu Jun 23 22:48:11 2011 +0200

    gda_sql_expr_serialize(): Correct copy/pasted documentation.

 libgda/sql-parser/gda-statement-struct-parts.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/libgda/sql-parser/gda-statement-struct-parts.c b/libgda/sql-parser/gda-statement-struct-parts.c
index dde0f93..bda136a 100644
--- a/libgda/sql-parser/gda-statement-struct-parts.c
+++ b/libgda/sql-parser/gda-statement-struct-parts.c
@@ -152,10 +152,10 @@ gda_sql_expr_copy (GdaSqlExpr *expr)
  * gda_sql_expr_serialize
  * @expr: a #GdaSqlExpr structure
  *
- * Creates a new string representing a field. You need to free the returned string
+ * Creates a new string representation of the SQL expression. You need to free the returned string
  * using g_free();
  *
- * Returns: a new string with the name of the field or "null" in case @expr is invalid.
+ * Returns: a new string with the SQL expression or "null" in case @expr is invalid.
  */
 gchar *
 gda_sql_expr_serialize (GdaSqlExpr *expr)