Update regression tests for new NekMesh output

basics/advection-diffusion/tests/basics-advection-diffusion-msh-align.tst

@@ -7,7 +7,7 @@
     </files>
     <metrics>
         <metric type="regex" id="1">
-            <regex>^Total negative Jacobians: (\d+)</regex>
+            <regex>^.*Total negative Jacobians: (\d+)</regex>
             <matches>
                 <match>
                     <field id="0">0</field>

basics/advection-diffusion/tests/basics-advection-diffusion-msh.tst

@@ -7,12 +7,12 @@
     </files>
     <metrics>
         <metric type="regex" id="1">
-            <regex>^Total negative Jacobians: (\d+)</regex>
+            <regex>^.*Total negative Jacobians: (\d+)</regex>
             <matches>
                 <match>
                     <field id="0">0</field>
                 </match>
             </matches>
-        </metric        >
+        </metric>
     </metrics>          
 </test>                 

basics/helmholtz/tests/basics-helmholtz-msh.tst

@@ -7,7 +7,7 @@
     </files>
     <metrics>
         <metric type="regex" id="1">
-            <regex>^Total negative Jacobians: (\d+)</regex>
+            <regex>^.*Total negative Jacobians: (\d+)</regex>
             <matches>
                 <match>
                     <field id="0">0</field>

mesh-generation/2d-step/tests/mesh-generation-2d-step.tst

@@ -8,7 +8,7 @@
     </files>
     <metrics>
         <metric type="regex" id="1">
-            <regex>^Total negative Jacobians: (\d+)</regex>
+            <regex>^.*Total negative Jacobians: (\d+)</regex>
             <matches>
                 <match>
                     <field id="0">0</field>