Problem:    Code is indented more than necessary.
Solution:   Use an early return where it makes sense. (Yegappan Lakshmanan,
            closes #11858)

Problem:    Reading beyond text.
Solution:   Add strlen_maxlen() and use it.

Problem:    Calling function for reduce() has too much overhead.
Solution:   Do not create a funccall_T every time.

Problem:    reduce() with a compiled lambda could be faster.
Solution:   Call eval_expr_typval() instead of call_func() directly.

Problem:    No good reason to build without the float feature.
Solution:   Remove configure check for float and "#ifdef FEAT_FLOAT".

Problem:    Error message for wrong argument type is not specific.
Solution:   Include more information in the error. (Yegappan Lakshmanan,
            closes #11037)

Problem:    Valgrind warning for using uninitialized variable.
Solution:   Initialize the type of newtv.

Problem:    The EBCDIC support is outdated.
Solution:   Remove the EBCDIC support.

Problem:    Using int for second argument of ga_init2().
Solution:   Remove unnessary type cast (int) when using sizeof().

Problem:    Error messages are spread out.
Solution:   Move more error messages to errors.h.