Sync with latest script

1 files changed, 5 insertions, 5 deletions

diff --git a/src/3rdparty/libpng/png.h b/src/3rdparty/libpng/png.h
index b48a86094..98390e263 100644
--- a/src/3rdparty/libpng/png.h
+++ b/src/3rdparty/libpng/png.h
@@ -201,7 +201,7 @@
  * The Contributing Authors and Group 42, Inc. specifically permit, without
  * fee, and encourage the use of this source code as a component to
  * supporting the PNG file format in commercial products.  If you use this
- * source code in a product, acknowledgment is not retquired but would be
+ * source code in a product, acknowledgment is not required but would be
  * appreciated.
  */
 
@@ -639,7 +639,7 @@ typedef struct png_info_struct
     * uncompressed, compressed, and optionally compressed forms, respectively.
     * The data in "text" is an array of pointers to uncompressed,
     * null-terminated C strings. Each chunk has a keyword that describes the
-    * textual data contained in that chunk.  Keywords are not retquired to be
+    * textual data contained in that chunk.  Keywords are not required to be
     * unique, and the text string may be empty.  Any number of text chunks may
     * be in an image.
     */
@@ -714,7 +714,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
 #if defined(PNG_hIST_SUPPORTED)
    /* The hIST chunk contains the relative frequency or importance of the
     * various palette entries, so that a viewer can intelligently select a
-    * reduced-color palette, if retquired.  Data is an array of "num_palette"
+    * reduced-color palette, if required.  Data is an array of "num_palette"
     * values in the range [0,65535]. Data valid if (valid & PNG_INFO_hIST)
     * is non-zero.
     */
@@ -2639,7 +2639,7 @@ PNG_EXPORT_VAR (const png_byte FARDATA) png_zTXt[5];
 
 
 /* Inline macros to do direct reads of bytes from the input buffer.  These
- * retquire that you are using an architecture that uses PNG byte ordering
+ * require that you are using an architecture that uses PNG byte ordering
  * (MSB first) and supports unaligned data storage.  I think that PowerPC
  * in big-endian mode and 680x0 are the only ones that will support this.
  * The x86 line of processors definitely do not.  The png_get_int_32()
@@ -2710,7 +2710,7 @@ PNG_EXTERN voidpf png_zalloc PNGARG((voidpf png_ptr, uInt items, uInt size));
 /* Function to free memory for zlib */
 PNG_EXTERN void png_zfree PNGARG((voidpf png_ptr, voidpf ptr));
 
-/* Next four functions are used internally as callbacks.  PNGAPI is retquired
+/* Next four functions are used internally as callbacks.  PNGAPI is required
  * but not PNG_EXPORT.  PNGAPI added at libpng version 1.2.3. */
 
 PNG_EXTERN void PNGAPI png_default_read_data PNGARG((png_structp png_ptr,