Fix confusing use of "minor" in inline documentation (Reference-LAPACK PR849)

lapack-netlib/SRC/sposv.f

@@ -110,9 +110,9 @@
 *>          INFO is INTEGER
 *>          = 0:  successful exit
 *>          < 0:  if INFO = -i, the i-th argument had an illegal value
-*>          > 0:  if INFO = i, the leading minor of order i of A is not
-*>                positive definite, so the factorization could not be
-*>                completed, and the solution has not been computed.
+*>          > 0:  if INFO = i, the leading principal minor of order i
+*>                of A is not positive, so the factorization could not
+*>                be completed, and the solution has not been computed.
 *> \endverbatim
 *
 *  Authors: