Documentation von GRASS_SIGSEGV_ON_ERROR

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@40535 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/init/variables.html

@@ -228,7 +228,13 @@ text
   <dt>GRASS_SH</dt>
   <dd>[shell scripts on Windows]<br>
     path to bourne shell interpreter used to run shell scripts.</dd>
-  
+
+  <dt>GRASS_SIGSEGV_ON_ERROR</dt>
+  <dd>Raise SIGSEGV if an error occures]<br>
+  This variable can be set for debugging purpose. The call
+  of G_fatal_error() will end in a segmentation violation. GDB can be used
+  to trace the source of the error.</dd>
+
   <dt>GRASS_PYTHON</dt>
   <dd>[wxGUI, Python SWIG]<br>
     set to override Python executable.<br>