Xmlfix (DOI-USGS#4134)

* Added text to description by Dave Humm. Closes DOI-USGS#3860

* Forgot to add to the change log file

* Update after review

* Updated after review

* Fixed broken xmls

* Update lronaccal.xml

CHANGELOG.md

@@ -29,9 +29,7 @@ update the Unreleased link so that it compares against the latest release tag.
 -->
 
 ## [Unreleased]
- - Added documentation to lronaccal and lrowaccal to describe why there are negative DNs in I/F calibrated images.
-
-
+- Added documentation to lronaccal and lrowaccal to describe why there are negative DNs in I/F calibrated images. [#3860](https://github.com/USGS-Astrogeology/ISIS3/issues/3860)
 - Fixed so required files are reported instead of continuing without them. [#4038](https://github.com/USGS-Astrogeology/ISIS3/issues/4038)
 - Update qview MeasureTool to add an option to calculate distances using RA/DEC and update qview to show DEC/RA rather than LAT/LON in lower-right corner [#3371](https://github.com/USGS-Astrogeology/ISIS3/issues/3371) 
 

isis/src/lro/apps/lronaccal/lronaccal.xml

@@ -79,7 +79,7 @@
     </p>
 
     <p>
-      Negative reported DNs are possible when E < -1 * TrueDN. These are
+      Negative reported DNs are possible when E &lt; -1 * TrueDN. These are
       pixels in a very dark image that happen to have a strongly negative
       random noise value.
     </p>

isis/src/lro/apps/lrowaccal/lrowaccal.xml

@@ -184,7 +184,7 @@
     </p>
 
     <p>
-      Negative reported DNs are possible when E < -1 * TrueDN. These are
+      Negative reported DNs are possible when E &lt; -1 * TrueDN. These are
       pixels in a very dark image that happen to have a strongly negative
       random noise value.
     </p>