Change where exceptions are caught

lib/youplot/backends/unicode_plot_backend.rb

@@ -39,19 +39,7 @@ module YouPlot
           labels = series[x_col]
           values = series[y_col].map(&:to_f)
         end
-        begin
-          UnicodePlot.barplot(labels, values, **params.to_hc)
-        # UnicodePlot error:
-        # All values have to be positive. Negative bars are not supported.
-        rescue ArgumentError => e
-          if YouPlot.run_as_executable?
-            warn e.backtrace[0]
-            warn "\e[35m#{e}\e[0m"
-            exit 1
-          else
-            raise e
-          end
-        end
+        UnicodePlot.barplot(labels, values, **params.to_hc)
       end
 
       def histogram(data, params)