Remove CRLF from NEWSLETTER.txt. (HDFGroup#4282)

release_docs/NEWSLETTER.txt

@@ -1,19 +1,20 @@
-Release of HDF5 1.14.4 Library and Tools is now available from the HDF5 Releases page.
-
-This is a maintenance release with a few changes and updates:
-----------------------------------------------------------------------------
-
-* Added support for _Float16 16-bit floating-point datatype
-
-  Support for the 16-bit floating-point _Float16 C type has been added to
-  HDF5. On platforms where this type is available, this can enable more
-  efficient storage of floating-point data when an application doesn't
-  need the precision of larger floating-point datatypes. It can also allow
-  for improved performance when converting between 16-bit floating-point
-  data and data of another HDF5 datatype.
-
-  (GitHub #4065, #2154)
-
-----------------------------------------------------------------------------
-Please see the full release notes for detailed information regarding this release,
-including a detailed list of changes.
+Release of HDF5 1.14.4 Library and Tools is now available from the HDF5 Releases page.
+
+This is a maintenance release with a few changes and updates:
+----------------------------------------------------------------------------
+
+* Added support for _Float16 16-bit floating-point datatype
+
+  Support for the 16-bit floating-point _Float16 C type has been added to
+  HDF5. On platforms where this type is available, this can enable more
+  efficient storage of floating-point data when an application doesn't
+  need the precision of larger floating-point datatypes. It can also allow
+  for improved performance when converting between 16-bit floating-point
+  data and data of another HDF5 datatype.
+
+  (GitHub #4065, #2154)
+
+----------------------------------------------------------------------------
+Please see the full release notes for detailed information regarding this release,
+including a detailed list of changes.
+