reporting: fix typos in validity checks

matlab/reporting/@series/write.m

@@ -42,8 +42,8 @@ assert(~isempty(o.data) && isa(o.data, 'dynSeries'), ...
 assert(ischar(o.color), '@series.write: color must be a string');
 assert(ischar(o.tableNegColor), '@series.write: tableNegColor must be a string');
 assert(ischar(o.tablePosColor), '@series.write: tablePosColor must be a string');
-assert(islogical(o.showTableMarkers), '@series.write: showTableMarkers must be a string');
-assert(islogical(o.tableAlignRight), '@series.write: tableAlignRight must be a string');
+assert(islogical(o.showTableMarkers), '@series.write: showTableMarkers must be true or false');
+assert(islogical(o.tableAlignRight), '@series.write: tableAlignRight must be true or false');
 
 %% Write Output
 dataString = ['%.' num2str(precision) 'f'];