Fix bug when computing G-coil geometry.

matlab/TCV_IMAS/tcv_ids_coil.m

@@ -60,7 +60,7 @@ iT = strcmp('T_003',namepfc);      % Return current
 nt_c(iT)=1;
 
 % Approximate circular G-coil conductor with a square of the same crosssection
-iG=strcmp('G_00',namepfc);
+iG=strncmp('G_00',namepfc,4);
 w_c(iG)=sqrt(xsect_c(iG));
 h_c(iG)=sqrt(xsect_c(iG));