man page: Only use --option=arg syntax if required

doc/innoextract.1

@@ -40,9 +40,9 @@ Here is a short summary of the options available in innoextract. Please refer to
 .nf
     \-\-dump               Dump contents without converting filenames
  \-L \-\-lowercase          Convert extracted filenames to lower-case
-    \-\-language=LANG      Extract files for the given language
- \-T \-\-timestamps=TZ      Timezone for file times or "local" or "none"
- \-d \-\-output-dir=DIR     Extract files into the given directory
+    \-\-language LANG      Extract files for the given language
+ \-T \-\-timestamps TZ      Timezone for file times or "local" or "none"
+ \-d \-\-output-dir DIR     Extract files into the given directory
 .fi
 .TP
 .B Display options:
@@ -68,7 +68,7 @@ Extract all files to the current directory. This action is enabled by default, u
 \fB-h\fP, \fB--help\fP
 Show a list of the supported options.
 .TP
-\fB--language\fP=LANG
+\fB--language\fP LANG
 Extract only language-independent files and files for the given language. By default all files are extracted.
 .TP
 \fB--license\fP
@@ -84,7 +84,7 @@ The \fB--list\fP option can be combined with \fB--test\fP or \fB--extract\fP to
 \fB-L\fP, \fB--lowercase\fP
 Convert filenames stored in the installer to lower-case before extracting.
 .TP
-\fB-d\fP, \fB--output-dir\fP=DIR
+\fB-d\fP, \fB--output-dir\fP DIR
 Extract all files into the given directory. By default, \fBinnoextract\fP will extract all files to the current directory.
 
 If the specified directory does not exist, it will be created. However, the parent directory must exist or extracting will fail.
@@ -103,7 +103,7 @@ This option can be combined with \fB--list\fP to print only the names of the con
 \fB-t\fP, \fB--test\fP
 Test archive integrity but don't write any output files. You may only specify one of \fB--extract\fP and \fB--test\fP.
 .TP
-\fB-T\fP, \fB--timestamps\fP=TZ
+\fB-T\fP, \fB--timestamps\fP TZ
 Inno Setup installers can contain timestamps in both UTC and 'local' timezones.
 
 The \fB--timestamps\fP option specifies what timezone should be used to adjust these 'local' file times.