0.3/2014-09-17--country_slug.xml: fix slug generation.

Replace spaces by hyphens.

Correction for 9301202 commit.

Author: php-coder

src/main/resources/liquibase/version/0.3/2014-09-17--country_slug.xml

@@ -18,7 +18,7 @@
 		<comment>Sets value of slug field to value of name field in lower case</comment>
 
 		<update tableName="countries">
-			<column name="slug" valueComputed="LOWER(name)" />
+			<column name="slug" valueComputed="LOWER(REPLACE(name, ' ', '-'))" />
 		</update>
 
 	</changeSet>