Add "exact" to *TRTRS and *TBTRS info value descriptions

Author: GYT

SRC/ctbtrs.f

@@ -131,7 +131,7 @@
 *>          INFO is INTEGER
 *>          = 0:  successful exit
 *>          < 0:  if INFO = -i, the i-th argument had an illegal value
-*>          > 0:  if INFO = i, the i-th diagonal element of A is zero,
+*>          > 0:  if INFO = i, the i-th diagonal element of A is exactly zero,
 *>                indicating that the matrix is singular and the
 *>                solutions X have not been computed.
 *> \endverbatim

SRC/ctrtrs.f

@@ -125,7 +125,7 @@
 *>          INFO is INTEGER
 *>          = 0:  successful exit
 *>          < 0: if INFO = -i, the i-th argument had an illegal value
-*>          > 0: if INFO = i, the i-th diagonal element of A is zero,
+*>          > 0:  if INFO = i, the i-th diagonal element of A is exactly zero,
 *>               indicating that the matrix is singular and the solutions
 *>               X have not been computed.
 *> \endverbatim

SRC/dtbtrs.f

@@ -131,7 +131,7 @@
 *>          INFO is INTEGER
 *>          = 0:  successful exit
 *>          < 0:  if INFO = -i, the i-th argument had an illegal value
-*>          > 0:  if INFO = i, the i-th diagonal element of A is zero,
+*>          > 0:  if INFO = i, the i-th diagonal element of A is exactly zero,
 *>                indicating that the matrix is singular and the
 *>                solutions X have not been computed.
 *> \endverbatim

SRC/dtrtrs.f

@@ -125,7 +125,7 @@
 *>          INFO is INTEGER
 *>          = 0:  successful exit
 *>          < 0: if INFO = -i, the i-th argument had an illegal value
-*>          > 0: if INFO = i, the i-th diagonal element of A is zero,
+*>          > 0:  if INFO = i, the i-th diagonal element of A is exactly zero,
 *>               indicating that the matrix is singular and the solutions
 *>               X have not been computed.
 *> \endverbatim

SRC/stbtrs.f

@@ -131,7 +131,7 @@
 *>          INFO is INTEGER
 *>          = 0:  successful exit
 *>          < 0:  if INFO = -i, the i-th argument had an illegal value
-*>          > 0:  if INFO = i, the i-th diagonal element of A is zero,
+*>          > 0:  if INFO = i, the i-th diagonal element of A is exactly zero,
 *>                indicating that the matrix is singular and the
 *>                solutions X have not been computed.
 *> \endverbatim

SRC/strtrs.f

@@ -125,7 +125,7 @@
 *>          INFO is INTEGER
 *>          = 0:  successful exit
 *>          < 0: if INFO = -i, the i-th argument had an illegal value
-*>          > 0: if INFO = i, the i-th diagonal element of A is zero,
+*>          > 0:  if INFO = i, the i-th diagonal element of A is exactly zero,
 *>               indicating that the matrix is singular and the solutions
 *>               X have not been computed.
 *> \endverbatim

SRC/ztbtrs.f

@@ -131,7 +131,7 @@
 *>          INFO is INTEGER
 *>          = 0:  successful exit
 *>          < 0:  if INFO = -i, the i-th argument had an illegal value
-*>          > 0:  if INFO = i, the i-th diagonal element of A is zero,
+*>          > 0:  if INFO = i, the i-th diagonal element of A is exactly zero,
 *>                indicating that the matrix is singular and the
 *>                solutions X have not been computed.
 *> \endverbatim

SRC/ztrtrs.f

@@ -125,7 +125,7 @@
 *>          INFO is INTEGER
 *>          = 0:  successful exit
 *>          < 0: if INFO = -i, the i-th argument had an illegal value
-*>          > 0: if INFO = i, the i-th diagonal element of A is zero,
+*>          > 0:  if INFO = i, the i-th diagonal element of A is exactly zero,
 *>               indicating that the matrix is singular and the solutions
 *>               X have not been computed.
 *> \endverbatim