[libpng17] Fixed some misleading indentation (Krishnaraj Bhat).

CHANGES

@@ -4922,7 +4922,8 @@ Version 1.7.0beta40 [November 6, 2014]
     (bug report by Marcin Juszkiewicz, fix by John Bowler).
   Use png_get_libpng_ver(NULL) instead of PNG_LIBPNG_VER_STRING in
     example.c, pngtest.c, and applications in the contrib directory.
-  Avoid out-of-bounds memory access in png_user_version_check().
+  Fixed an out-of-range read in png_user_version_check() (Bug report from
+    Qixue Xiao, CVE-2015-8540).
   Simplified and future-proofed png_user_version_check().
   Fixed GCC unsigned int->float warnings. Various versions of GCC
     seem to generate warnings when an unsigned value is implicitly
@@ -5538,7 +5539,7 @@ Version 1.7.0beta78 [January 23, 2016]
     32 bits of address space when size_t/ptrdiff_t are 64 bit types.
   Revised workaround for false-positive Coverity issue in pngvalid.c.
 
-Version 1.7.0beta79 [February 14, 2016]
+Version 1.7.0beta79 [March 7, 2016]
   Only use exit(77) in configure builds.
   Corrected error in PNG_IMAGE_PNG_SIZE_MAX. This new macro underreported
     the palette size because it failed to take into account that the memory
@@ -5560,7 +5561,8 @@ Version 1.7.0beta79 [February 14, 2016]
     the application makes (previously low windowBits settings would get reset
     to higher values.)
   Changed PNG_INFO_cHNK and PNG_FREE_cHNK from 0xnnnn to 0xnnnnU in png.h
-   (Robert C. Seacord). Various other flags in png.h made unsigned as well.
+    (Robert C. Seacord). Various other flags in png.h made unsigned as well.
+  Fixed some misleading indentation (Krishnaraj Bhat).
 
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