fixup minor docs fixes

Co-authored-by: Karen Etheridge <[email protected]>

Author: leonerd

pod/perldiag.pod

@@ -4153,8 +4153,8 @@ which is forbidden.  See L<perlvar/%{^HOOK}> and L<perlfunc/require EXPR>.
 
 =item Missing required named parameter '%s' to subroutine '%s'
 
-(F) A subroutine using a signature that declares a non-optional named
-parameter was invoked, but the caller did not provide a value associated
+(F) A subroutine was invoked that uses a signature that declares a
+non-optional named parameter, but the caller did not provide a value associated
 with that name.  The caller of the subroutine is presumably at fault.
 
 The message attempts to include the name of the called subroutine.  If
@@ -7520,8 +7520,8 @@ perl does not recognise the name of the requested attribute.
 
 =item Unrecognized named parameter '%s' to subroutine '%s'
 
-(F) A subroutine using a signature that declares named parameters but has no
-slurpy parameter was invoked, and the caller provided a name that did not
+(F) A subroutine was invoked that uses a signature that declares named parameters but has no
+slurpy parameter, and the caller provided a name that did not
 match any declared named parameter.  The caller of the subroutine is
 presumably at fault.
 

pod/perlsub.pod

@@ -445,7 +445,7 @@ If there are multiple optional positional parameters and not enough
 arguments are supplied to fill them all, they will be filled from left
 to right.
 
-Since Perl 5.43.3, a signature may also declare named parameters.  Like
+Since Perl 5.43.5, a signature may also declare named parameters.  Like
 positional parameters, these are lexical variables which will contain values
 passed by the caller when the subroutine is invoked.  Whereas positional
 parameters take their values from the corresponding position in the list