Document and fix tla/baz conversion tests

tests/test-convert-baz

@@ -2,6 +2,16 b''
 
 "$TESTDIR/hghave" baz || exit 80
 
+# I cannot find a way to set the user name locally
+tla my-id > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+    echo '***'
+    echo '* PLEASE SET YOUR TLA USERNAME WITH:'
+    echo '* tla my-id username'
+    echo '***'
+    exit 1;
+fi
+
 echo "[extensions]" >> $HGRCPATH
 echo "convert=" >> $HGRCPATH
 echo 'hgext.graphlog =' >> $HGRCPATH

tests/test-convert-tla

@@ -2,6 +2,16 b''
 
 "$TESTDIR/hghave" tla || exit 80
 
+# I cannot find a way to set the user name locally
+tla my-id > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+    echo '***'
+    echo '* PLEASE SET YOUR TLA USERNAME WITH:'
+    echo '* tla my-id username'
+    echo '***'
+    exit 1;
+fi
+
 echo "[extensions]" >> $HGRCPATH
 echo "convert=" >> $HGRCPATH
 echo 'hgext.graphlog =' >> $HGRCPATH