Merge pull request #593 in HDFFV/hdf5 from hdf5_1_8_19 to 1.8/masterhdf5-1_8_19

* commit 'c15238a38fdb3692466bc1218de4c5aeb420fdcc': (153 commits)
  Commit changes to release version strings in README.txt and RELEASE.txt from release.
  Put back link targets for dynamically loaded libraries in Makefile.ams that avoid linking with libhdf5 dependencies.  Some configurations failed unnecessarily to find and link with lz and lsz when these targets were removed.
  Update URL for obtaining source inINSTALL file.
  Disable building of libdynlib* dynamically loaded plugin test libraries on CYGWIN. Added known problem entry to RELEASE.txt. Set version for 1.8.19 release. Barbara updated contents of README.txt file.
  Moved libdynlib* plugin test libraries to noist_LT_LIBRARIES with added flag '-rpath /nowhere' to stop them being installed while keeping them from linking with libhdf5, etc. Incremented version to 1.8.19-pre1 and ran bin/release to create tar and zip files for testing.
  HDF5 1.8.19-pre1 released.
  Add RELEASE.txt entry for H5Dget_chunk_size.
  Remove test entries
  Ran bin/reconfigure after so number change.
  Update hl lib .so numbers:  new function was added. Update RELEASE.txt:  move H5DOread_chunks entry to new features, clarify entry for HDFFV-10051.
  Updated notes for test fixes and added bug fix for h5diff help text.
  Update h5vers and release scripts for 1.8.19 branch, set version to 1.8.19-pre1.
  Make script name consistent across product versions
  Update version to 1.8.19-pre1.
  Propagate .so number changes to Makefile.ins with bin/reconfigure.
  Add toolset option
  Update so version numbers according to the interface compatibility report.
  Update supported Platforms section. Remove empty sub-sections of New Features and Bugs Fixed sections.
  Add entries for HDFFV-10051 and HDFFV-9934 to RELEASE.txt.
  Correct spelling
  ...

1 files changed, 12 insertions, 9 deletions

diff --git a/tools/h5diff/testfiles/h5diff_623.txt b/tools/h5diff/testfiles/h5diff_623.txt
index 4ab66a5..f9258d1 100644
--- a/tools/h5diff/testfiles/h5diff_623.txt
+++ b/tools/h5diff/testfiles/h5diff_623.txt
@@ -1,5 +1,5 @@
 <-n u> is not a valid option
-usage: h5diff [OPTIONS] file1 file2 [obj1[ obj2]] 
+usage: h5diff [OPTIONS] file1 file2 [obj1[ obj2]]
   file1             File name of the first HDF5 file
   file2             File name of the second HDF5 file
   [obj1]            Name of an HDF5 object, in absolute path
@@ -60,19 +60,22 @@ usage: h5diff [OPTIONS] file1 file2 [obj1[ obj2]]
    -n C, --count=C
          Print differences up to C. C must be a positive integer.
    -d D, --delta=D
-         Print difference if (|a-b| > D). D must be a positive number.
+         Print difference if (|a-b| > D). D must be a positive number. Where a
+         is the data point value in file1 and b is the data point value in file2.
          Can not use with '-p' or '--use-system-epsilon'.
    -p R, --relative=R
-         Print difference if (|(a-b)/b| > R). R must be a positive number.
+         Print difference if (|(a-b)/b| > R). R must be a positive number. Where a
+         is the data point value in file1 and b is the data point value in file2.
          Can not use with '-d' or '--use-system-epsilon'.
    --use-system-epsilon
-         Print difference if (|a-b| > EPSILON), EPSILON is system defined value.
+         Print difference if (|a-b| > EPSILON), EPSILON is system defined value. Where a
+         is the data point value in file1 and b is the data point value in file2.
          If the system epsilon is not defined,one of the following predefined
          values will be used:
            FLT_EPSILON = 1.19209E-07 for floating-point type
            DBL_EPSILON = 2.22045E-16 for double precision type
          Can not use with '-p' or '-d'.
-   --exclude-path "path" 
+   --exclude-path "path"
          Exclude the specified path to an object when comparing files or groups.
          If a group is excluded, all member objects will also be excluded.
          The specified path is excluded wherever it occurs.
@@ -107,15 +110,15 @@ usage: h5diff [OPTIONS] file1 file2 [obj1[ obj2]]
   common objects.
 
  Object comparison:
-  1) Groups 
+  1) Groups
       First compares the names of member objects (relative path, from the
       specified group) and generates a report of objects that appear in only
       one group or in both groups. Common objects are then compared recursively.
-  2) Datasets 
+  2) Datasets
       Array rank and dimensions, datatypes, and data values are compared.
-  3) Datatypes 
+  3) Datatypes
       The comparison is based on the return value of H5Tequal.
-  4) Symbolic links 
+  4) Symbolic links
       The paths to the target objects are compared.
       (The option --follow-symlinks overrides the default behavior when
        symbolic links are compared.).