udf: Rename udf_error to udf_err

Rename udf_error to udf_err for consistency with normal logging
uses of pr_err.

Rename function udf_err to _udf_err.
Remove __func__ from uses and move __func__ to a new udf_err
macro that calls _udf_err.
Some of the udf_error uses had \n terminations, some did not so
standardize \n's to udf_err uses, remove \n from _udf_err function.
Coalesce udf_err formats.
One message prefixed with udf_read_super is now prefixed with
udf_fill_super.

Reviewed-by: NamJae Jeon <linkinjeon@gmail.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 81e66af..7bc3ba1 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -33,13 +33,14 @@
 extern void udf_warning(struct super_block *, const char *, const char *, ...);
 
 __attribute__((format(printf, 3, 4)))
-extern void udf_error(struct super_block *sb, const char *function,
-		      const char *fmt, ...);
+extern void _udf_err(struct super_block *sb, const char *function,
+		     const char *fmt, ...);
+#define udf_err(sb, fmt, ...)					\
+	_udf_err(sb, __func__, fmt, ##__VA_ARGS__)
 
 #define udf_info(f, a...) \
 	printk(KERN_INFO "UDF-fs INFO " f, ##a);
 
-
 #define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
 #define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )