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

lapack-netlib/SRC/VARIANTS/cholesky/TOP/cpotrf.f

@@ -79,8 +79,8 @@ C> \verbatim
 C>          INFO is INTEGER
 C>          = 0:  successful exit
 C>          < 0:  if INFO = -i, the i-th argument had an illegal value
-C>          > 0:  if INFO = i, the leading minor of order i is not
-C>                positive definite, and the factorization could not be
+C>          > 0:  if INFO = i, the leading principal minor of order i
+C>                is not positive, and the factorization could not be
 C>                completed.
 C> \endverbatim
 C>

lapack-netlib/SRC/VARIANTS/cholesky/TOP/dpotrf.f

@@ -79,8 +79,8 @@ C> \verbatim
 C>          INFO is INTEGER
 C>          = 0:  successful exit
 C>          < 0:  if INFO = -i, the i-th argument had an illegal value
-C>          > 0:  if INFO = i, the leading minor of order i is not
-C>                positive definite, and the factorization could not be
+C>          > 0:  if INFO = i, the leading principal minor of order i
+C>                is not positive, and the factorization could not be
 C>                completed.
 C> \endverbatim
 C>

lapack-netlib/SRC/VARIANTS/cholesky/TOP/spotrf.f

@@ -79,8 +79,8 @@ C> \verbatim
 C>          INFO is INTEGER
 C>          = 0:  successful exit
 C>          < 0:  if INFO = -i, the i-th argument had an illegal value
-C>          > 0:  if INFO = i, the leading minor of order i is not
-C>                positive definite, and the factorization could not be
+C>          > 0:  if INFO = i, the leading principal minor of order i
+C>                is not positive, and the factorization could not be
 C>                completed.
 C> \endverbatim
 C>

lapack-netlib/SRC/VARIANTS/cholesky/TOP/zpotrf.f

@@ -79,8 +79,8 @@ C> \verbatim
 C>          INFO is INTEGER
 C>          = 0:  successful exit
 C>          < 0:  if INFO = -i, the i-th argument had an illegal value
-C>          > 0:  if INFO = i, the leading minor of order i is not
-C>                positive definite, and the factorization could not be
+C>          > 0:  if INFO = i, the leading principal minor of order i
+C>                is not positive, and the factorization could not be
 C>                completed.
 C> \endverbatim
 C>