Duplicate line of code in CNVegCarbonStateType.F90

[olyson]

Brief summary of bug

There is a duplicate line of code in CNVegCarbonStateType.F90

General bug information

CTSM version you are using: ctsm5.1.dev133

Does this bug cause significantly incorrect results in the model's science? No

Details of bug

Line 1640 is duplicated, i.e.,

1634 if (flag=='read' .and. .not. readvar) then
1635 if ( masterproc ) write(iulog,*) 'initializing this%leafc_storage with atmospheric c13 value'
1636 do i = bounds%begp,bounds%endp
1637 if (pftcon%c3psn(patch%itype(i)) == 1._r8) then
1638 this%leafc_storage_patch(i) = c12_cnveg_carbonstate_inst%leafc_storage_patch(i) * c3_r2
1639 else
1640 this%leafc_storage_patch(i) = c12_cnveg_carbonstate_inst%leafc_storage_patch(i) * c4_r2
1641 this%leafc_storage_patch(i) = c12_cnveg_carbonstate_inst%leafc_storage_patch(i) * c4_r2
1642 endif
1643 end do
1644 end if

[wwieder]

Will address in #1861