Fix display of long double in tools (#469)

* OESS-98 convert plugin option to FetchContent, add tests

* Fixes for pkcfg files because of plugin option

* OESS-98 fix tools test for plugins

* Keep doxygen comments under 100 chars long - format hint

* Whitespace

* HDFFV-11144 - Reclassify CMake messages

* HDFFV-11099/11100 added help text

* Reworked switch statement to compare string instead

* Fix typo

* Update CDash mode

* Correct name of threadsafe

* Correct option name

* Undo accidental commit

* Note LLVM 10 to 11 format default changes

* Update format plugin

* Undo clang-format version 11 changes

* One more correction

* Update supported platforms

* Revert whitespace changes

* Correct whitespace

* Changes from PR#3

* HDFFV-11213 added option to control gcc10 warnings diagnostics

* HDFFV-11212 Use the new references correctly in JNI utility and tests

* format source

* Fix typo

* Add new test file

* HDFFV-11212 - update test and remove unused arg

* Minor non-space formatting changes

* Use H5I_INVALID_ID instead of "-1"

* source formatting

* add missing testfile, update jni function

* Undo commit of debug code

* remove mislocated file

* Fix h5repack test for handling of fapls and id close

* Update h5diff test files usage text

* HDFFV-11212 add new ref tests for JNI export dataset

* src format update

* Remove blank line typo

* src format typo

* long double requires %Lg

* Another long double foramt specifer S.B. %Lg

* issue with t128bit test

* Windows issue with h5dump and type.

* Fix review issues

* refactor function nesting and fix error checks

* format fixes

* Remove untested functions and javadoc quiet comments

* Restore TRY block.

* Change string append errors to memory exception

* revert to H5_JNI_FATAL_ERROR - support functions need work

* Add assertion error for h5util functions

* remove duplicate function

* format fix

* Revert HD function error handling

* Update copyright comments

* GH #386 java folder copyright corrections

* Whitespace

* GH #359 implement and fix tools 1.6 API usage

* remove excessive comments

* Flip inits to correct ifdef section

* rework ifdef to be simpler

* format issue

* Reformat ifdef inits

* remove static attribute

* format compliance

* Update names

* Revert because logic relies on float not being int

* Changes noticed from creating merge of #412

* Double underscore change

* Correct compiler version variable used

* Remove header guard underscores

* Whitespace cleanup

* Split format source and commit changes on repo push

* remove pre-split setting

* Change windows TS to use older VS.

* correct window os name

* HDFFV-11212 JNI export util and Javadoc

* Suggested review changes

* Another change found

* Committing clang-format changes

* HDFFV-11113 long double in tools

* HDFFV-11113 add note

Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

tools/lib/h5diff_array.c

@@ -27,7 +27,7 @@
 #define F_FORMAT "%-15g %-15g %-15g\n"
 
 #if H5_SIZEOF_LONG_DOUBLE != 0
-#define LD_FORMAT "%-15Lf %-15Lf %-15Lf\n"
+#define LD_FORMAT "%-15Lg %-15Lg %-15Lg\n"
 #endif
 
 #define I_FORMAT    "%-15d %-15d %-15d\n"
@@ -42,7 +42,7 @@
 #define F_FORMAT_P "%-15.10g %-15.10g %-15.10g %-14.10g\n"
 
 #if H5_SIZEOF_LONG_DOUBLE != 0
-#define LD_FORMAT_P "%-15.10Lf %-15.10Lf %-15.10Lf %-14.10Lf\n"
+#define LD_FORMAT_P "%-15.10Lg %-15.10Lg %-15.10Lg %-14.10Lg\n"
 #endif
 
 #define I_FORMAT_P   "%-15d %-15d %-15d %-14f\n"
@@ -59,7 +59,7 @@
 #define F_FORMAT_P_NOTCOMP "%-15.10g %-15.10g %-15.10g not comparable\n"
 
 #if H5_SIZEOF_LONG_DOUBLE != 0
-#define LD_FORMAT_P_NOTCOMP "%-15.10Lf %-15.10Lf %-15.10Lf not comparable\n"
+#define LD_FORMAT_P_NOTCOMP "%-15.10Lg %-15.10Lg %-15.10Lg not comparable\n"
 #endif
 
 #define I_FORMAT_P_NOTCOMP   "%-15d %-15d %-15d not comparable\n"