Ignore an undefined column in --column-names when execute ordering

[kazuki43zoo]

--command=ordering-column --column-names=b,a,c,d

Pattern 1

Specify column name that not include header names in --column-names (d in this case)

a,b,c
value1,value2,value3

Current behavior

Skip ordering.

Support behavior by this issue

Can order columns.

b,a,c
value2,value1,value3

Pattern 2

all columns include in --column-names

a,b,c,d
value1,value2,value3,value4

Current behavior

Can order columns.

b,a,c,d
value2,value1,value3,value4

Support behavior by this issue

No changes (= Keep current behavior)

Pattern 3

exists only in header names (e in this case)

a,b,c,d,e
value1,value2,value3,value4,value5

Current behavior

Skip ordering.

Support behavior by this issue

No changes (= Keep current behavior)