[lecture-materials:debugging-strategies] minor changes

lectures/debugging-strategies/slides.qmd

@@ -60,7 +60,9 @@ Check the manuals
  - [GCC manuals](https://gcc.gnu.org/onlinedocs/)
  - [Intel Fortran compiler options](https://www.intel.com/content/www/us/en/docs/fortran-compiler/developer-guide-reference/2024-1/compiler-options-001.html)
 
-Also gcc compile time checks and options like `-Wall` and `-Wextra`
+Also gcc compile time checks and options like 
+
+`-Wall` and `-Wextra`
 
 
 ## Fixing compile-time errors {.leftalign}
@@ -288,7 +290,7 @@ def Open_File(filename):
     return xr.open_dataset(filename)\
         .convert_calendar('standard', use_cftime=True)
 
-def Select_Date(ds, model_date, method='ffill'):
+def Select_Date(ds, model_date, method):
     import datetime as dt
 
     ds_elem = ds.sel(time=model_date, method=method)