Replace xstricmp() with strcoll()

README.md

@@ -104,7 +104,6 @@ Have fun with it! PRs are welcome. Check out [#1](https://github.com/jarun/nnn/i
   - Detailed file information
   - Media information (needs mediainfo or exiftool, if specified)
 - Ordering
-  - Numeric order (1, 2, ... 10, 11, ...) for numeric names
   - Sort by modification time, size
 - Convenience
   - Create, rename files and directories

nnn.c

@@ -632,6 +632,7 @@ xdiraccess(char *path)
 	return TRUE;
 }
 
+#if 0
 /*
  * We assume none of the strings are NULL.
  *
@@ -639,6 +640,8 @@ xdiraccess(char *path)
  * E.g., the order '1, 10, 2' doesn't make sense to human eyes.
  *
  * If the absolute numeric values are same, we fallback to alphasort.
+ *
+ * NOTE: This API is replaced by strcoll().
  */
 static int
 xstricmp(char *s1, char *s2)
@@ -731,6 +734,7 @@ xstricmp(char *s1, char *s2)
 
 	return (int) (TOUPPER(*s1) - TOUPPER(*s2));
 }
+#endif
 
 /* Return the integer value of a char representing HEX */
 static char
@@ -842,7 +846,7 @@ entrycmp(const void *va, const void *vb)
 			return -1;
 	}
 
-	return xstricmp(pa->name, pb->name);
+	return strcoll(pa->name, pb->name);
 }
 
 /*