maint: Eliminate accidental double spaces in code. * make_int.cc, file-editor-tab.h, file-editor.cc, shortcut-manager.h, __contourc__.cc, cellfun.cc, debug.cc, errwarn.h, graphics.in.h, jit-ir.h, oct-stream.cc, quadcc.cc, qz.cc, sparse-xdiv.cc, symtab.cc, __init_fltk__.cc, ov-class.cc, ov-float.h, ov-scalar.h, op-int.h, CNDArray.cc, CSparse.cc, MSparse.cc, Sparse.cc, boolNDArray.cc, chNDArray.cc, dNDArray.cc, dSparse.cc, fCNDArray.cc, fNDArray.cc, int16NDArray.cc, int32NDArray.cc, int64NDArray.cc, int8NDArray.cc, intNDArray.cc, uint16NDArray.cc, uint32NDArray.cc, uint64NDArray.cc, uint8NDArray.cc, randgamma.h, randmtzig.h, randpoisson.c, randpoisson.h, Sparse-op-defs.h, oct-time.cc, kpse.cc, lo-array-errwarn.h, lo-ieee.h, del2.m, num2str.m, __isequal__.m, lookfor.m, hsv2rgb.m, colorspace_conversion_revert.m, fminbnd.m, create_pkgadddel.m, shading.m, struct2hdl.m, gallery.m, discrete_cdf.m, kolmogorov_smirnov_test.m, assert.m, datestr.m, classes.tst, jit.tst: Eliminate accidental double spaces in code.

--- a/libinterp/corefcn/sparse-xdiv.cc	Tue Mar 29 21:13:22 2016 -0700
+++ b/libinterp/corefcn/sparse-xdiv.cc	Wed Mar 30 15:19:12 2016 -0700
@@ -398,7 +398,7 @@
   octave_idx_type nr = b.rows ();
   octave_idx_type nc = b.cols ();
 
-  ComplexMatrix  result (nr, nc, Complex (octave_NaN, octave_NaN));
+  ComplexMatrix result (nr, nc, Complex (octave_NaN, octave_NaN));
 
   for (octave_idx_type j = 0; j < nc; j++)
     for (octave_idx_type i = b.cidx (j); i < b.cidx (j+1); i++)