[Feature #19790] [DOC] Fix the manual page as crash report

Also add missing `%f` and `%F`.

1 files changed, 32 insertions, 19 deletions

diff --git a/man/ruby.1 b/man/ruby.1
index eb55b06a4d..a2b69c3cd6 100644
--- a/man/ruby.1
+++ b/man/ruby.1
@@ -472,7 +472,7 @@ If this switch is given, and no script arguments (script file or
 options) are present, Ruby quits immediately.
 .Pp
 .It Fl -crash-report Ns = Ns Ar template
-Sets the template of path name to save bug report.
+Sets the template of path name to save crash report.
 See
 .Ev RUBY_CRASH_REPORT
 environment variable for details.
@@ -652,42 +652,55 @@ Machine stack size used at fiber creation.
 default: 262144 or 524288
 .Pp
 .El
-.Sh BUG REPORT ENVIRONMENT
+.Sh CRASH REPORT ENVIRONMENT
 .Pp
 .Bl -tag -compact -width "RUBY_CRASH_REPORT"
 .It Ev RUBY_CRASH_REPORT
-The template of path name to save bug report.
+The template of path name to save crash report.
 default: none
 .El
-.Ss Naming bug report files
-The template can contain % specifiers which are substituted
-by the following values when a bug report file is created:
+.Ss Naming crash report files
+The template can contain
+.Li \fB%\fP
+specifiers which are substituted by the following values when a crash
+report file is created:
 .Pp
 .Bl -hang -compact -width "%NNN"
-.It %%
-A single % character.
-.It %e
+.It Li \fB%%\fP
+A single
+.Li \fB%\fP
+character.
+.It Li \fB%e\fP
 Basename of executable.
-.It %E
+.It Li \fB%E\fP
 Pathname of executable,
 with slashes (\fB/\fP) replaced by exclamation marks (\fB!\fP).
-.It %p
+.It Li \fB%f\fP
+Basename of the program name,
+.Li "$0" .
+.It Li \fB%F\fP
+Pathname of the program name,
+.Li "$0",
+with slashes (\fB/\fP) replaced by exclamation marks (\fB!\fP).
+.It Li \fB%p\fP
 PID of dumped process.
-.It %t
+.It Li \fB%t\fP
 Time of dump, expressed as seconds since the
 Epoch, 1970-01-01 00:00:00 +0000 (UTC).
-.It %NNN
+.It Li \fB%NNN\fP
 A character code in octal.
 .El
 .Pp
-A single % at the end of the template is dropped from the
-core filename, as is the combination of a % followed by any
-character other than those listed above.
-All other characters in the template become a literal
-part of the core filename.
+A single
+.Li \fB%\fP
+at the end of the template is dropped from the core filename, as is
+the combination of a
+.Li \fB%\fP
+followed by any character other than those listed above.  All other
+characters in the template become a literal part of the core filename.
 The template may include \(aq/\(aq characters, which are interpreted
 as delimiters for directory names.
-.Ss Piping bug reports to a program
+.Ss Piping crash reports to a program
 If the first character of this file is a pipe symbol (\fB|\fP),
 then the remainder of the line is interpreted as the command-line for
 a program (or script) that is to be executed.