Basis data: Fortran D exponents were being read without the exponent

The root cause of the "wrong basis set data" found while adjudicating
against the codes' built-ins turns out to be systemic and much simpler
than bad data.

11 files held 24045 values written in Fortran D notation:

    0.30612488044D-01

EDSIGaussianBasisSetLibrary.C reads these with strtod(), which stops at
the "D" and returns the mantissa alone -- 0.30612488044, ten times too
large.  Perl's numeric conversion, used by rdStandardGBS.pm and the
wr*GBS.pm writers, does exactly the same.  Both confirmed directly rather
than assumed.  Nothing reported an error anywhere; the basis was simply
wrong for every element written that way.

Converted to E notation, which every reader handles.  Among the files
affected: STO-6G, WTBS, and the cc-pV*Z files behind cc-pCVDZ, cc-pwCVDZ
and the aug-cc-pV*Z diffuse sets.  STO-6G for argon could not even be
parsed before and now reproduces both codes' built-in copies to 3e-09
Hartree.

tests/basis now fails on any D notation in a .BAS or .POT, self-tested by
reintroducing an affected file.

CORRECTION to my earlier reporting.  I described this as ECCE's stored
data being wrong by up to 1.78 Hartree, measured by converting both
sources and running them.  The conclusion was right but the mechanism I
gave was not: Python's float() REJECTS D notation, so my comparison was
silently skipping those rows, and what I measured was my own parser
dropping data rather than ECCE's reading it wrongly.  Both are real
faults; they are not the same fault, and the number I quoted belonged to
mine.

Ahlrichs VDZ, Ahlrichs TZV and cc-pVQZ-DK were separately regenerated from
BSE before this was understood.  They are kept: the regenerated files are
correct, verified against both codes' built-ins, and carry more precision.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EFMUNbw2UpRPmgsqviAowb

Author: andy

data/admin/basissets/AHLRICHS_TZV.BAS

@@ -738,8 +738,8 @@ contraction shell=P num_primitives=3 num_coefficients=1
 contraction shell=P num_primitives=1 num_coefficients=1
 0.52555094893 1.0000000000
 contraction shell=D num_primitives=4 num_coefficients=1
-56.563189119 .11543245294532D-01
-16.278734711 .70299845987196D-01
+56.563189119 .11543245294532E-01
+16.278734711 .70299845987196E-01
 5.6964273914 .22450770821295
 2.1411147942 .39703065434226
 contraction shell=D num_primitives=1 num_coefficients=1

data/admin/basissets/AHLRICHS_VDZ.BAS

@@ -530,7 +530,7 @@ contraction shell=P num_primitives=3 num_coefficients=1
 1.1791047769 0.57272062927
 0.43369774432 0.24582728206
 contraction shell=D num_primitives=4 num_coefficients=1
-27.559479426 0.30612488044D-01
+27.559479426 0.30612488044E-01
 7.4687020327 0.15593270944
 2.4345903574 0.36984421276
 0.78244754808 0.47071118077
@@ -916,12 +916,12 @@ contraction shell=P num_primitives=1 num_coefficients=1
 contraction shell=P num_primitives=1 num_coefficients=1
 0.13353413325 1.0000000000
 contraction shell=D num_primitives=4 num_coefficients=1
-94.494024044 0.23490101098D-01
-27.188185260 0.13747735767D+00
-9.5091567352 0.36649929124D+00
-3.4170516853 0.48750989884D+00
+94.494024044 0.23490101098E-01
+27.188185260 0.13747735767E+00
+9.5091567352 0.36649929124E+00
+3.4170516853 0.48750989884E+00
 contraction shell=D num_primitives=1 num_coefficients=1
-1.1479590083 0.27657943383D+00
+1.1479590083 0.27657943383E+00
 atom=Br
 contraction shell=S num_primitives=6 num_coefficients=1
 113286.38776 0.14283037779E-02
@@ -957,7 +957,7 @@ contraction shell=P num_primitives=1 num_coefficients=1
 contraction shell=P num_primitives=1 num_coefficients=1
 0.15702758965 1.0000000000
 contraction shell=D num_primitives=4 num_coefficients=1
-104.85518642 0.22650147581D-01
+104.85518642 0.22650147581E-01
 30.281143688 0.13455483230
 10.651394267 0.36474454537
 3.8699456233 0.49044587056
@@ -998,7 +998,7 @@ contraction shell=P num_primitives=1 num_coefficients=1
 contraction shell=P num_primitives=1 num_coefficients=1
 0.18319467414 1.0
 contraction shell=D num_primitives=4 num_coefficients=1
-115.55868603 0.21945485333D-01
+115.55868603 0.21945485333E-01
 33.477985864 0.13211212879
 11.834450207 0.36333306964
 4.3408254894 0.49300484446