Fix missing comma in continued line
EXTERNAL declaration of subroutines missed a comma before the continuation line,
causing a strange run-together name to appear in the object when compiled with ifort.
EXTERNAL LSAME, SLAMCH, CLANHB, ILAENV
* ..
* .. External Subroutines ..
- EXTERNAL SSCAL, SSTERF, XERBLA, CLASCL, CSTEQR
+ EXTERNAL SSCAL, SSTERF, XERBLA, CLASCL, CSTEQR,
$ CHETRD_2STAGE
* ..
* .. Intrinsic Functions ..
