Corrected the documentaiton for -j,--jobs` (closes #462).

doc/man/ruby-install.1.md

@@ -47,7 +47,7 @@ https://github.com/postmodern/ruby-install#readme
 	Remove the downloaded Ruby archive and unpacked source-code after
 	installation.
 
-`-j[`*JOBS*`]`, `--jobs[=`*JOBS*`]`
+`-j`, `--jobs` *NUM*, `-j`*NUM*, `--jobs=`*NUM*
 	Specifies the number of *make* jobs to run in parallel when compiling
 	Ruby. If the -j option is provided without an argument, *make* will
 	allow an unlimited number of simultaneous jobs.

share/man/man1/ruby-install.1

@@ -62,7 +62,7 @@ Remove the downloaded Ruby archive and unpacked source\-code after
 installation\.
 .LP
 .TP
-\fB-j[\fR\fIJOBS\fP\fB]\fR, \fB--jobs[=\fR\fIJOBS\fP\fB]\fR
+\fB-j\fR, \fB--jobs\fR \fINUM\fP, \fB-j\fR\fINUM\fP, \fB--jobs=\fR\fINUM\fP
 Specifies the number of \fImake\fP jobs to run in parallel when compiling
 Ruby\. If the \-j option is provided without an argument, \fImake\fP will
 allow an unlimited number of simultaneous jobs\.

share/ruby-install/ruby-install.sh

@@ -43,7 +43,8 @@ Options:
 	    --system		Alias for -i $system_dir
 	-s, --src-dir DIR	Directory to download source-code into
 	-c, --cleanup		Remove archive and unpacked source-code after installation
-	-j[JOBS], --jobs[=JOBS]	Number of jobs to run in parallel when compiling
+	-j, --jobs NUM, -jNUM, --jobs=NUM
+				Number of jobs to run in parallel when compiling
 	-p, --patch FILE	Patch to apply to the Ruby source-code
 	-M, --mirror URL	Alternate mirror to download the Ruby archive from
 	-u, --url URL		Alternate URL to download the Ruby archive from