cli: Omit surplus whitespace at the end of lines in .explain output.

FossilOrigin-Name: 11e4eb095746602961a178044809a68a77ba7b367596997bef726e54062423d9

manifest

@@ -1,5 +1,5 @@
-C In\sthe\s.selecttrace\soutput,\sshow\sthe\sORDER\sBY\sclause\sadded\sby\sthe\sMin/Max\noptimization.
-D 2021-01-13T11:44:51.022
+C cli:\sOmit\ssurplus\swhitespace\sat\sthe\send\sof\slines\sin\s.explain\soutput.
+D 2021-01-13T12:59:20.834
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -541,7 +541,7 @@ F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
 F src/resolve.c 1948a92ca9eab776632816b97e57c61d933474a78aad4f4ef835c916a83dbb1c
 F src/rowset.c ba9515a922af32abe1f7d39406b9d35730ed65efab9443dc5702693b60854c92
 F src/select.c 74655feb1ba3767f0f376029acdf1e488942e6b02aa0e65679a75181c2fbe88f
-F src/shell.c.in 79bceb990e4bac23a09bb8dd65783ea4867b8bfca9242b5a82b884043e65109a
+F src/shell.c.in 8331e564cd73e1784dd034d88ce626d2867531e9cc38ece980b256b09eb548b3
 F src/sqlite.h.in 0af968a1fa3c717261e1df0ed105fa7bddb4d82de7e0adb3eab49e6aa81b4de7
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h 61b38c073d5e1e96a3d45271b257aef27d0d13da2bea5347692ae579475cd95e
@@ -1895,7 +1895,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 35824c1bcbd89ae4a94acfbe511bfbd888c418b981819e72bc9a991fc82d136c
-R 61cf4ac944232eaafcf9775988abf565
+P db0ecfe66433f8915b6eb16d3735a4a0d0f8e0bbc395bc9c1364387506fc4657
+R 2ad612629a79dbad03e8b7f173945d59
 U drh
-Z 998402e9038a172631ad95c2c70da3a5
+Z f407a95e341e109313c0922f7d2a229b

manifest.uuid

@@ -1 +1 @@
-db0ecfe66433f8915b6eb16d3735a4a0d0f8e0bbc395bc9c1364387506fc4657
+11e4eb095746602961a178044809a68a77ba7b367596997bef726e54062423d9

src/shell.c.in

@@ -2027,6 +2027,7 @@ static int shell_callback(
       if( azArg==0 ) break;
       for(i=0; i<nArg; i++){
         int w = aExplainWidth[i];
+        if( i==nArg-1 ) w = 0;
         if( azArg[i] && strlenChar(azArg[i])>w ){
           w = strlenChar(azArg[i]);
         }