[doc] fix ino/dev field in lua stat, add lighty.path_simplify to global methods

Change-Id: I76ad8233d0ea1a934d0812c9a8c93fa97317344d

doc/core_lua.xml

@@ -178,6 +178,7 @@
 				* @lighty.md5(str)@: calculates the md5 checksum of the string @str@ (returns the digest as string in hexadecimal)
 				* @lighty.sha1(str)@: calculates the sha1 checksum of the string @str@ (returns the digest as string in hexadecimal)
 				* @lighty.sha256(str)@: calculates the sha256 checksum of the string @str@ (returns the digest as string in hexadecimal)
+				* @lighty.path_simplify(str)@: return simplified path
 			]]></textile>
 
 			<example>
@@ -346,7 +347,7 @@
 
 		<section title="Stat struct">
 			<textile><![CDATA[
-				Represents "struct stat". Most fields should be self explaining (@man stat@ if you don't know them).
+				Represents "struct stat". Most fields should be self explaining (@man 2 stat@ ("debian manpage":https://manpages.debian.org/stat.2.en.html) if you don't know them).
 
 				Fields:
 				* @is_file@(ro): S_ISREG(mode)
@@ -364,7 +365,7 @@
 				* @gid@(ro)
 				* @size@(ro)
 				* @ino@(ro)
-				* @ino@(ro)
+				* @dev@(ro)
 			]]></textile>
 		</section>
 	</section>

src/common/utils.c

@@ -358,9 +358,6 @@ void li_url_decode(GString *path) {
  * /blah/../foo     gets  /foo
  * /abc/./xyz       gets  /abc/xyz
  * /abc//xyz        gets  /abc/xyz
- *
- * NOTE: src and dest can point to the same buffer, in which case
- *       the operation is performed in-place.
  */
 
 void li_path_simplify(GString *path) {
@@ -372,7 +369,7 @@ void li_path_simplify(GString *path) {
 	if (path == NULL)
 		return;
 
-	walk  = start = out = slash = path->str;
+	walk = start = out = slash = path->str;
 	while (*walk == ' ') {
 		walk++;
 	}