fix test

Author: nschloe

tests/test_barchart_errorbars_reference.tex

@@ -55,37 +55,37 @@
 (axis cs:2.25,0.9)
 --(axis cs:2.25,1.1);
 
-\addplot [semithick, black, mark=-, mark size=8, mark options={solid}, only marks]
+\addplot [line width=2pt, black, mark=-, mark size=8, mark options={solid}, only marks]
 table {%
 -0.25 0.9
 0.75 1.8
 1.75 2.5
 };
-\addplot [semithick, black, mark=-, mark size=8, mark options={solid}, only marks]
+\addplot [line width=2pt, black, mark=-, mark size=8, mark options={solid}, only marks]
 table {%
 -0.25 1.1
 0.75 2.2
 1.75 3.5
 };
-\addplot [semithick, black, mark=-, mark size=8, mark options={solid}, only marks]
+\addplot [line width=2pt, black, mark=-, mark size=8, mark options={solid}, only marks]
 table {%
 0 2.6
 1 1.8
 2 3.5
 };
-\addplot [semithick, black, mark=-, mark size=8, mark options={solid}, only marks]
+\addplot [line width=2pt, black, mark=-, mark size=8, mark options={solid}, only marks]
 table {%
 0 3.4
 1 2.2
 2 4.5
 };
-\addplot [semithick, black, mark=-, mark size=8, mark options={solid}, only marks]
+\addplot [line width=2pt, black, mark=-, mark size=8, mark options={solid}, only marks]
 table {%
 0.25 4.9
 1.25 2.8
 2.25 0.9
 };
-\addplot [semithick, black, mark=-, mark size=8, mark options={solid}, only marks]
+\addplot [line width=2pt, black, mark=-, mark size=8, mark options={solid}, only marks]
 table {%
 0.25 5.1
 1.25 3.2