Fix error message.

macdice · macdice · commit fac4145bf43a · 2020-07-23T21:18:13.000+12:00
Remove extra space. Back-patch to all releases, like commit 7897e3b. Author: Lu, Chenyang <lucy.fnst@cn.fujitsu.com> Discussion: https://postgr.es/m/795d03c6129844d3803e7eea48f5af0d%40G08CNEXMBPEKD04.g08.fujitsu.local
diff --git a/src/backend/storage/file/buffile.c b/src/backend/storage/file/buffile.c
@@ -340,7 +340,7 @@ BufFileDumpBuffer(BufFile *file)
 		if (bytestowrite <= 0)
 			ereport(ERROR,
 					(errcode_for_file_access(),
-					 errmsg("could not write to file \"%s\" : %m",
+					 errmsg("could not write to file \"%s\": %m",
 							FilePathName(thisfile))));
 
 		file->offsets[file->curFile] += bytestowrite;
