STY: clean up trailing whitespace

Leave some trailing spaces to test genuine PDFgetX2 output.

Author: pavoljuhas

doc/tutorial/Ni.stru

@@ -2,11 +2,11 @@ title  structure Ni  FCC
 format pdffit
 scale   1.000000
 sharp   0.000000, 0.000000, 1.000000, 0.000000
-spcgr  Fm-3m           
+spcgr  Fm-3m
 cell    3.520000,  3.520000,  3.520000, 90.000000, 90.000000, 90.000000
 dcell   0.000000,  0.000000,  0.000000,  0.000000,  0.000000,  0.000000
 ncell        1,       1,       1,         4
-atoms 
+atoms
 NI          0.00000000        0.00000000        0.00000000       1.0000
             0.00000000        0.00000000        0.00000000       0.0000
             0.00250000        0.00250000        0.00250000
@@ -27,7 +27,7 @@ NI          0.50000000        0.00000000        0.50000000       1.0000
             0.00000000        0.00000000        0.00000000
 NI          0.50000000        0.50000000        0.00000000       1.0000
             0.00000000        0.00000000        0.00000000       0.0000
-            0.00250000        0.00250000        0.00250000   
+            0.00250000        0.00250000        0.00250000
             0.00000000        0.00000000        0.00000000
             0.00000000        0.00000000        0.00000000
             0.00000000        0.00000000        0.00000000

src/diffpy/pdfgui/tests/testdata/300K.gr

@@ -5,7 +5,7 @@ prep=gsas     machine=npdf
 run=300K     background=npdf_00907
 smooth=2    smoothParam=32 32 0    backKillThresh=-1.0
 in beam: radius=0.635     height=2.54
-temp=308     runTitle=Run 1018: LMO - RT (before), HIPPO-furnace                                      
+temp=308     runTitle=Run 1018: LMO - RT (before), HIPPO-furnace
 
 ##### Vanadium     runCorrection=T
 run=npdf_00709     background=npdf_00710

src/diffpy/pdfgui/tests/testdata/CdSe_bulk_wur.stru

@@ -2,11 +2,11 @@ title   Cell structure file of CdSe #186
 format pdffit
 scale   0.846685
 sharp   0.366927,  0.591251,  3.700000
-spcgr  P63mc           
+spcgr  P63mc
 cell    4.29904,   4.29904,   7.0106027, 90.000000, 90.000000,120.000000
 dcell   0.000493,  0.000493,  0.001368,  0.000000,  0.000000,  0.000000
 ncell        1,       1,       1,         4
-atoms 
+atoms
 CD          0.33340001        0.66670001        0.00000000       1.0000
             0.00000000        0.00000000        0.00000000       0.0000
             0.01303035        0.01303035        0.01401959

src/diffpy/pdfgui/tests/testdata/LaMnO3.stru

@@ -2,11 +2,11 @@ title                 Cell structure file of LaMnO3.0
 format pdffit
 scale   1.000000
 sharp   0.000000,  1.000000,  3.500000
-spcgr  Pbnm            
+spcgr  Pbnm
 cell    5.486341,  5.619215,  7.628206, 90.000000, 90.000000, 90.000000
 dcell   0.000118,  0.000156,  0.000118,  0.000000,  0.000000,  0.000000
 ncell        1,       1,       1,        20
-atoms 
+atoms
 LA          0.99609631        0.03214940        0.25000000       1.0000
             0.00003041        0.00000852        0.00000000       0.0000
             0.00253993        0.00253993        0.00253993

src/diffpy/pdfgui/tests/testdata/Ni.stru

@@ -2,11 +2,11 @@ title  structure Ni  FCC
 format pdffit
 scale   1.000000
 sharp   0.000000, 0.000000, 1.000000, 0.000000
-spcgr  Fm-3m           
+spcgr  Fm-3m
 cell    3.520000,  3.520000,  3.520000, 90.000000, 90.000000, 90.000000
 dcell   0.000000,  0.000000,  0.000000,  0.000000,  0.000000,  0.000000
 ncell        1,       1,       1,         4
-atoms 
+atoms
 NI          0.00000000        0.00000000        0.00000000       1.0000
             0.00000000        0.00000000        0.00000000       0.0000
             0.00126651        0.00126651        0.00126651