fix(gwf-lak.dfn; gwf-sfr.dfn): minor typos (#2033)

doc/mf6io/mf6ivar/dfn/gwf-lak.dfn

@@ -719,7 +719,7 @@ shape
 tagged true
 in_record true
 reader urword
-longname well status
+longname lake status
 description keyword option to define lake status.  STATUS can be ACTIVE, INACTIVE, or CONSTANT. By default, STATUS is ACTIVE.
 
 block period

doc/mf6io/mf6ivar/dfn/gwf-sfr.dfn

@@ -744,7 +744,7 @@ shape
 tagged true
 in_record true
 reader urword
-longname well status
+longname reach status
 description keyword option to define stream reach status.  STATUS can be ACTIVE, INACTIVE, or SIMPLE. The SIMPLE STATUS option simulates streamflow using a user-specified stage for a reach or a stage set to the top of the reach (depth = 0). In cases where the simulated leakage calculated using the specified stage exceeds the sum of inflows to the reach, the stage is set to the top of the reach and leakage is set equal to the sum of inflows. Upstream fractions should be changed using the UPSTREAM\_FRACTION SFRSETTING if the status for one or more reaches is changed to ACTIVE or INACTIVE. For example, if one of two downstream connections for a reach is inactivated, the upstream fraction for the active and inactive downstream reach should be changed to 1.0 and 0.0, respectively, to ensure that the active reach receives all of the downstream outflow from the upstream reach. By default, STATUS is ACTIVE.
 
 block period